Question

Which of these values is equivalent to the change in momentum of

an object?

A. impulse
B. force
C. velocity
D. acceleration

Answer 1

Answer : The correct option is, (A) impulse

Explanation :

Change in momentum : It is the product of the mass of an object and the change in velocity of an object.

Formula :
`\Delta p=m* \Delta V`

Impulse : It is the product of the force applied on the object and the time. It is also equivalent to the change in momentum of an object.

Formula :
`J=F* t`

And the impulse is also equal to the change in momentum.

Proof of
`J=\Delta p` :

`J=F* t\\\\J=(m* a)* t\\\\J=m* (a* t)\\\\J=m* \Delta v=\Delta p`

Force : It is the product of mass of an object and acceleration of an object.

Velocity : It is defined as the change in the position of an object in unit time.

Acceleration : It is defined as the change in the velocity of an object in a unit time.

Hence, the impulse is equivalent to the change in momentum of an object.

Answer 2

A. An impulse of a force changes the momentum of a body and has the same units and dimensions as momentum.