Question

A girl of 60 kg jumps out of a boat of mass 300 kg with a velocity of 2 m/s. With what velocity does the boat begin to move backwards?​

Answer 1

Answer:

Here, m1=50kg,m2=300kg,v1=3m/s,v2=?

As m1v1+m2u2=0,v2=−m1u1m2 or v2=−50×3300=−0.5m/s

Negative sign is for backward motion of the boat.

Explanation:

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Answer 2

Explanation:

= 60x2/ 300

= 120/300

= 0.4 m/s

so it was moving backwards with 0.4m/s

hope it helps