Question

A body of mass 2 kg moving with a uniform velocity of 40m/s collides with another at rest . the two together begin to move with a uniform velocity of 25 m/s . find the mass of other body .

Answer 1

m = 2 kg. u = 40m/s.

2*40 +0 = (2+m)v

80 = 50 + 25m

30 = 25 m

m = 30/25

m = 1.2 kg

Answer 2

Answer:

1.2

Explanation:

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