Posted by **raul** on Wednesday, June 19, 2013 at 6:21am.

A boat of mass 40 kg is at rest; A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. what is the velocity of boat?

a) 4 m/s b) 2 m/s

c) 8 m/s d) 1 m/s

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