(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two particles A and B, of mass 0.3 kg and m kg respectively, are moving in opposite

directions along the same straight horizontal line so that the particles collide directly.

Immediately before the collision, the speeds of A and B are 8 m s–1 and 4 m s–1 respectively.

In the collision the direction of motion of each particle is reversed and, immediately after

the collision, the speed of each particle is 2 m s–1. Find:

a) the magnitude of the impulse exerted by B on A in the collision

2. Relevant equations

I = m(v-u)

3. The attempt at a solution

How do i know what mass to use? the mass m or 0.3? Is there a rule?

Thanks :)

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# Homework Help: Impulse Question

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