Two boys are standing on the two sides of a stationary boat. one has a mass of 70 kg and the other has 50 kg. if they jump at 4ms-1 at a time, the boat will go in either direction.

The boy with more mass will apply more momentum.

Explanation:

You see the boy with more mass which is the first boy with 70kg will apply more momentum.

The formula for momentum is P=mv.

In the first case,

P=70x4=280kgms-1

In second case,

P=50x4=200kgms-1

From this it is clear that the boat will go down to the side where the heavy boy is standing.

I hope this is clear for you.

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more than, less

less than, more