Question

A boy moves on a skateboard at a constant velocity of 3m.s . The combined mass of the boy and the skateboard is 40kg. He catches a bag of flour of mass 5kg that is thrown to him horizontally at 6m.s . Determine the velocity of the boy after catching the bag of flour.

Answer 1

from behind, or from in front of him?

In any case, just make sure the momentum before and after the catch is the same.

Answer 2

I don't know the answer

Answer 3

This guy has done a video of the answer of this exact quest look up Nick Hiltermann on Youtube and look at his video on Impulse and Momentum