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 (nearly)​

Answer 1

Answer:

By conservation of linear momentum

Momentum of boat = Momentum of dog

M

1

V

1

=m

2

v

2

V

1

=?, m

2

=4kg, v

2

=10m/s

40v

1

=4×10

v

1

=

40

4×10

=1m/s

Explanation:

Hope it helps youuu❤️

Answer 2

Answer:

Momentum of the boat = Momentum of the dog

M×V =m×v

V=? , M= 50, m=5 , v=20

50×V = 20×5

50V= 100 m/s

V = 100÷50

= 2m/s.