Question

A body of mass 5 kg , moving with velocity 10m/sec collides with another body of the mass 20 kg at rest. The velocity of the second body due to collision is

(a) 2.5 m/sec (b) 7.5 m/sec
(c)5m/sec (d) 10 m/sec
​

Answer 1

Explanation:

see the attachment

hope this helps you

Answer 2

Explanation:

HII MATE

using the law of momentum conservation..

m¹u¹+m²u²=m¹v¹+m²v²

5*10+20*0=5*v¹+20*v²

50=5v¹+20v²

50=20v²

v²=2.5m/s

this is the equation...option a is correct

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