Question

The effect of an impulse force on the body is measured only in terms of its
A) Force
B) Moment of momentum
C) Impulse
D) None of these

Answer 1

The effect of impulse force on a body is related to a change in the momentum of the object. The term impulse is used to refer to a fast-acting force or impact which causes a sudden change in the momentum of the object.

Complete step by step answer:
Impulse is a quantity associated with mechanical objects when there is a change in the momentum of the object. It is actually the application of a force that causes the change in momentum of an object which is also called the impulse.
This can be understood through the collisions of two objects. When two objects collide, an object experiences a force for a specific amount of time that results in a change in momentum after that collision. In a collision, objects experience an impulse that causes and is equal to the change in momentum.
Although, the effect of a force on the body is measured only in terms of impulse. As we discussed, if a moving object is stopped by an impact, a change in momentum of the object occurs. This change in momentum is called the impulse.
Hence the correct choice is option (C).

Note:
We might get confused in option (B) however option (B) mentions the moment of momentum and not its change. A moment is an expression involving the product of a distance and physical quantity so the moment of momentum would be the product of distance and momentum which is not equal to the impulse of the object. An impulse is just equal to the change in momentum of the object.