Question

The force involved in a collision is 1.0 × 102 newtons. The duration of the impact is 1.0 × 10-4 seconds. What is the value of the change in momentum?

Answer 1

The correct answer to the question is :  $10^{-2}\ N.s$

EXPLANATION:

As per the question, the force involved in the collision F = $1.0\times 10^2\ N.$.

The duration of impact is given as t = $1.0\times 10^{-4}\ s$.

We are asked to calculate the change in momentum.

We know that the change in momentum is equal to the impulse of a body .

The impulse of a body is defined as the product of force with time.

Hence, impulse = force × time

                          = F × t

                          = $1.0\times 10^2\ N\times 1.0\times 10^{-4}\ s$

                          = $10^{-2}\ N.s$              [ans]

Hence, the change in momentum is  $10^{-2}\ N.s$

Answer 2

D 1.0 × 10-2 kilogram meters/second