Physics, asked by vvantteamilo16, 5 hours ago

A boy of mass 70 kg moving with a speed of 20 m/s jumps on a skate board (stationary) of mass 4 kg. They both move together. Find the mass of the combined system.

Answers

Answered by prathameshkhole8

0

Explanation:

m1u1+m2u2=m1v1+m2v2

70*20=20*(m1+m2)

total mass=70

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