# Vì sao lực là một đại lượng vectơ?

Why is force a vector quantity?

## Wiki on Why force is a vector quantity?

` Vì sao lực là một đại lượng vectơ? -`

The correct answer and the answer to the question”Why is force said to be a vector quantity? Along with extensive Physics knowledge is an extremely useful learning material for teachers and students.

## Answer the question: Why say force is a vector quantity?

– Force is a vector quantity because: Force has both magnitude, direction and direction. A quantity that has both magnitude and direction and direction is called a vector quantity.

## Consult the Knowledge of Force

– Force is a vector quantity (because force has both magnitude, direction and direction) that characterizes the action of one object on another to produce acceleration of an object or deformation of an object.

– Example: When we pull the bowstring:

+ The hand has a pulling force acting on the bowstring, causing the string to stretch to its full extent, the bowstring is deformed.

+ The string has tension (elastic force), this force appears, acting on the bowstring makes the arrow fly.

The phenomenon when an object exerts many forces simultaneously but does not cause acceleration, those forces are called balancing forces. Where, the price of the force is the force vector transmission.

When an object is acted upon by two equal forces with the same magnitude but opposite directions, the two forces acting on it are called equilibrium forces.

– Example: A tennis ball is hung on a string. There are now two forces acting on the ball: the tension in the string and the gravitational pull of the Earth.

– Force F has:

+ Set point: located at the object under the action of force

+ Direction, direction: coincide with the force vector

+ Force magnitude: proportional to the length of the force vector

– Two balancing forces are two forces acting on an object with the same price, the same magnitude and opposite directions.

The unit of force is the newton (N).

a, The concept of force synthesis

When a force simultaneously substitutes for the forces acting on an object, it is called a combined force. In force synthesis, the displacement force is called the resulting force, acting the same as the displacement force

b, Law of summation of forces: Applying parallelogram rule

– Suppose two force vectors are concurrent at a point, forming a pair of sides of a parallelogram, their consequences are represented by a diagonal from the point of convergence.

Exercise 1: Let 40N and 30N respectively be the displacements of two concurrent forces F1 and F2. If the angle between the two forces is 0°,

60 °90 °120°180 ° What is the magnitude of the two forces? In each case, please comment the level of impact and impact

between angle αα and the magnitude of each force? Draw an illustration for each case.

Exercise 2: On the horizontal, a long bar AB is placed (the mass of bar AB is negligible) in the case

End A is attached to the wall like a hinge, end B is attached to the wall by a piece of BC wire (point C belongs to.).

Wall). A 3 kg object is attached to B. Given that the length of rod AB is 40cm, the length of rod AC is 30cm, and

g = 10m/s2, what is the tension on the string BC? What is the compressive force of rod AB?

Lesson 3: In the horizontal direction, a bar of length AO is placed (the mass of bar AB is negligible) in the case

Xem thêm bài viết hay:  Chuyển đổi số trong bán lẻ là gì? Những yếu tố chính trong chuyển đổi số bán lẻ

End A is attached to the wall like a hinge, end A is attached to the wall by a piece of string AB (point B belongs to the wall).

A 1 kg object is suspended at O. Knowing that the angle between OA and OB is 30° and g = 10m/s2ask the tension of the string

How much is AB?

Lesson 4: Know that the three forces F1, F2 and F3 are concurrent and coplanar. Assume 0 °60°120° sequentially is the magnitude of the unity angle

formed by F1, F2 and F3 with the horizontal axis Ox. The magnitudes of the three forces are equal and equal to 30N. Determine the force and draw the figure

illustration?

Posted by: Tran Hung Dao High School

[rule_{ruleNumber}]

#Why #force #is #a #quantity #vector

[rule_3_plain]

#Why #force #is #a #quantity #vector

Authentic answers and solutions to the question “Why is force a vector quantity? Along with extensive knowledge of Physics are extremely useful learning materials for teachers and students.
Quick view content1 Answer the question: Why is force a vector quantity?2 Reference knowledge about Force2.1 1. What is force?2.2 2. Synthesis of forces2.3 3. Exercises
Answer the question: Why is force a vector quantity?
– Force is a vector quantity because: Force has both magnitude, direction and direction. But a quantity that has both magnitude and direction and direction is called a vector quantity.
Next, let’s go with Tran Hung Dao High School to learn more about the knowledge of Luc lessons!
1. What is force?
– Force is a vector quantity (because force has both magnitude, direction and direction) that characterizes the action of one object on another, but the result is an acceleration of the object or a deformation of the object.
– Example: When we pull a bowstring:
+ The hand has a pulling force acting on the string of the bow, making the string stretch to the maximum, the bow is deformed

+ The string has a tension (elastic force), this force appears, acting on the bow, causing the arrow to fly.
The phenomenon when an object is acted upon at the same time by many forces but without causing acceleration, those forces are called balancing forces. Where, the price of the force is the line carrying the force vector.
– The phenomenon that an object is affected by the same two forces with the same magnitude but opposite direction, the two forces acting on it are called balanced forces.
– Example: A tennis ball is hung on a string. Now there are two forces acting on the ball: the tension of the string and the gravity of the Earth.
– Force F has:
+ Set point: located at the object under the action of force
+ Direction, direction: coincide with the force vector
+ Force magnitude: proportional to the length of the force vector
– Two balancing forces are two forces acting on the same object, with the same price, the same magnitude and opposite directions.
The unit of force is the newton (N).
2. Total force
a, The concept of force synthesis
When a force is substituted for forces acting on an object simultaneously, it is called a combined force. In force synthesis, the displaced force is called the resultant force, the effect is the same as that of the displaced forces
b, The rule of force synthesis: Applying the parallelogram rule
– Assuming two force vectors are concurrent at a point, the connection forming a pair of sides of a parallelogram, their resultant force is represented by a diagonal line from the point of concurrency.
3. Exercises
Exercise 1: Let 40N and 30N respectively be the class degrees of two concurrent forces F1 and F2. If the resulting angle between two sequential forces is 0°,
60°,90°,120°,180°, what is the magnitude of the two forces? In each case, please comment on the influence and influence
between angle αα and magnitude of each force? Draw an illustration for each case.
Exercise 2: In the horizontal direction, a long bar AB is placed (the mass of bar AB is negligible) in case
The end of A is attached to the wall like a hinge, the end of B is attached to the wall by a piece of BC wire (point C belongs to .).
wall). An object weighing 3 kg is attached to B. Given that the length of rod AB is 40cm, the length of rod AC is 30cm, and
g= 10m/s2, what is the tension on the string BC? What is the compressive force of rod AB?
Lesson 3: In the horizontal direction, a long bar AO is placed (the mass of bar AB is negligible) in the case
end of is attached to the wall like a hinge, end A is attached to the wall by a piece of string AB (point B belongs to the wall).
An object weighing 1kg is suspended from O. Given that the angle between OA and OB is 30° and g = 10m/s2, ask the tension on the string.
How much is AB?
Lesson 4: Know that the three forces F1, F2 and F3 are concurrent and coplanar. Assume 0°, 60°, 120° are the magnitude of the merged angle, respectively
formed by F1, F2 and F3 with the horizontal axis Ox. The magnitudes of the three forces are equal and equal to 30N. Determine the resultant force and draw the figure
illustration?
Posted by: Tran Hung Dao High School

Xem thêm bài viết hay:  Lý do FUNiX hấp dẫn bạn trẻ yêu thích thực học – thực chiến ngành IT

#Why #force #is #a #quantity #vector

[rule_2_plain]

#Why #force #is #a #quantity #vector

[rule_2_plain]

#Why #force #is #a #quantity #vector

[rule_3_plain]

#Why #force #is #a #quantity #vector

Authentic answers and solutions to the question “Why is force a vector quantity? Along with extensive knowledge of Physics are extremely useful learning materials for teachers and students.
Quick view content1 Answer the question: Why is force a vector quantity?2 Reference knowledge about Force2.1 1. What is force?2.2 2. Synthesis of forces2.3 3. Exercises
Answer the question: Why is force a vector quantity?
– Force is a vector quantity because: Force has both magnitude, direction and direction. But a quantity that has both magnitude and direction and direction is called a vector quantity.
Next, let’s go with Tran Hung Dao High School to learn more about the knowledge of Luc lessons!
1. What is force?
– Force is a vector quantity (because force has both magnitude, direction and direction) that characterizes the action of one object on another, but the result is an acceleration of the object or a deformation of the object.
– Example: When we pull a bowstring:
+ The hand has a pulling force acting on the string of the bow, making the string stretch to the maximum, the bow is deformed

+ The string has a tension (elastic force), this force appears, acting on the bow, causing the arrow to fly.
The phenomenon when an object is acted upon at the same time by many forces but without causing acceleration, those forces are called balancing forces. Where, the price of the force is the line carrying the force vector.
– The phenomenon that an object is affected by the same two forces with the same magnitude but opposite direction, the two forces acting on it are called balanced forces.
– Example: A tennis ball is hung on a string. Now there are two forces acting on the ball: the tension of the string and the gravity of the Earth.
– Force F has:
+ Set point: located at the object under the action of force
+ Direction, direction: coincide with the force vector
+ Force magnitude: proportional to the length of the force vector
– Two balancing forces are two forces acting on the same object, with the same price, the same magnitude and opposite directions.
The unit of force is the newton (N).
2. Total force
a, The concept of force synthesis
When a force is substituted for forces acting on an object simultaneously, it is called a combined force. In force synthesis, the displaced force is called the resultant force, the effect is the same as that of the displaced forces
b, The rule of force synthesis: Applying the parallelogram rule
– Assuming two force vectors are concurrent at a point, the connection forming a pair of sides of a parallelogram, their resultant force is represented by a diagonal line from the point of concurrency.
3. Exercises
Exercise 1: Let 40N and 30N respectively be the class degrees of two concurrent forces F1 and F2. If the resulting angle between two sequential forces is 0°,
60°,90°,120°,180°, what is the magnitude of the two forces? In each case, please comment on the influence and influence
between angle αα and magnitude of each force? Draw an illustration for each case.
Exercise 2: In the horizontal direction, a long bar AB is placed (the mass of bar AB is negligible) in case
The end of A is attached to the wall like a hinge, the end of B is attached to the wall by a piece of BC wire (point C belongs to .).
wall). An object weighing 3 kg is attached to B. Given that the length of rod AB is 40cm, the length of rod AC is 30cm, and
g= 10m/s2, what is the tension on the string BC? What is the compressive force of rod AB?
Lesson 3: In the horizontal direction, a long bar AO is placed (the mass of bar AB is negligible) in the case
end of is attached to the wall like a hinge, end A is attached to the wall by a piece of string AB (point B belongs to the wall).
An object weighing 1kg is suspended from O. Given that the angle between OA and OB is 30° and g = 10m/s2, ask the tension on the string.
How much is AB?
Lesson 4: Know that the three forces F1, F2 and F3 are concurrent and coplanar. Assume 0°, 60°, 120° are the magnitude of the merged angle, respectively
formed by F1, F2 and F3 with the horizontal axis Ox. The magnitudes of the three forces are equal and equal to 30N. Determine the resultant force and draw the figure
illustration?
Posted by: Tran Hung Dao High School