A boy of mass 45 kg, runs with a velocity of 5 m/s and jumps onto a skateboard and cruises at a velocity of 4.5 m/s on a level road. Find the mass of the skateboard. Assume that no other force is acting in the horizontal direction.

A boy of mass 45 kg, runs with a velocity of 5 m/s and jumps onto a sk

1.	A boy of mass 45 kg, runs with a velocity of 5 m/s and jumps onto a skateboard and cruises at a velocity of 4.5 m/s on a level road. Find the mass of the skateboard. Assume that no other force is acting in the horizontal direction.
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A boy of mass 45 kg, runs with a velocity of 5 m/s and jumps onto a skateboard and cruises at a velocity of 4.5 m/s on a level road. Find the mass of the skateboard. Assume that no other force is acting in the horizontal direction.​

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A boy of mass 45 kg, runs with a velocity of 5 m/s and jumps onto a skateboard and cruises at a velocity of 4.5 m/s on a level road. Find the mass of the skateboard. Assume that no other force is acting in the horizontal direction.