Physics

Grade-10

Easy

Question

# “We can derive the law of conservation of momentum from second law of motion.”

This statement is ____.

- True
- False

Hint:

### Newton's second law of motion states that in an isolated system the total momentum remains the same.

## The correct answer is 'True'.

### According to Newton's second law of motion, force = change in momentum / change in time.

In an isolated system net force is zero so change in momentum is zero; this means change in momentum is zero when external force is zero i.e. in an isolated system change in momentum is zero which proves the law of conservation of momentum.

### Related Questions to study

Physics

### What is the abbreviation used for initial velocity and final velocity?

### What is the abbreviation used for initial velocity and final velocity?

PhysicsGrade-10

Physics

### Identify the error in the image.

### Identify the error in the image.

PhysicsGrade-10

Physics

### “Newton’s first law of motion is used to derive Law of conservation of momentum.” Is the statement true or false?

### “Newton’s first law of motion is used to derive Law of conservation of momentum.” Is the statement true or false?

PhysicsGrade-10

Physics

### In a collision,

### In a collision,

PhysicsGrade-10

Physics

### What is being depicted in the given image?

### What is being depicted in the given image?

PhysicsGrade-10

Physics

### What is missing in this statement?

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

### What is missing in this statement?

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

PhysicsGrade-10

Physics

### “The law of conservation of momentum is valid for all the moving objects colliding together irrespective of the direction they are moving in.”

Identify whether the statement is true or false.

### “The law of conservation of momentum is valid for all the moving objects colliding together irrespective of the direction they are moving in.”

Identify whether the statement is true or false.

PhysicsGrade-10

Physics

### An object is moving at a uniform speed in a counter clockwise direction in a uniform circular motion. At the location shown, the centripetal force stops acting on the object. Which path will the object follow?

### An object is moving at a uniform speed in a counter clockwise direction in a uniform circular motion. At the location shown, the centripetal force stops acting on the object. Which path will the object follow?

PhysicsGrade-10

Physics

### A boy is sitting in a merry-go-round. The time period of circular motion is 5 sec, and its speed of rotation is 70 m/s. What is the radius of the circle formed?

### A boy is sitting in a merry-go-round. The time period of circular motion is 5 sec, and its speed of rotation is 70 m/s. What is the radius of the circle formed?

PhysicsGrade-10

Physics

### Richa is sitting in a merry-go-round. The time period of circular motion if it forms a circle of 56 m radius. The speed of rotation is 40 m/s.

### Richa is sitting in a merry-go-round. The time period of circular motion if it forms a circle of 56 m radius. The speed of rotation is 40 m/s.

PhysicsGrade-10

Physics

### A girl is sitting in a merry-go-round. The time period of circular motion of the merry-go-round is 8 sec and it forms a circle of 40 m radius. What is the speed of rotation?

### A girl is sitting in a merry-go-round. The time period of circular motion of the merry-go-round is 8 sec and it forms a circle of 40 m radius. What is the speed of rotation?

PhysicsGrade-10

Physics

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point D

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point D

PhysicsGrade-10

Physics

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point C

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point C

PhysicsGrade-10

Physics

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point B

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point B

PhysicsGrade-10

Physics

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point A

### What is the direction of the velocity at point mentioned if the ball is revolving anticlockwise?

At point A

PhysicsGrade-10