First slide

NA

Question

A boat of mass 50kg is at rest. A dog of mass 5kg moves in the boat with a velocity of 20m/s. What is the velocity of boat?

Moderate

A

4m/s
B

2m/s
C

8m/s
D

1 m/s

Solution

$v_{b} = \frac{m \times v}{m + M}$

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