Aboy and his skateboard have a combined mass of 65 kg. what is the speed of the boy and skateboard if they have a momentum of 275 kg • ?

Answer : The velocity is given by 4.2 m/s.

Explanation :

It is given that,

Mass of a boy and the skateboard is, m = 65 kg

The momentum of the combined system is, p = 275 kg m/s

We know that the momentum of a body is the product of its mass and the velocity with which it is moving.

i.e.

or

The speed of the boy and the skateboard is 4.2 m/s.