I have a doubt in the answer key to the problem on law of conservation of momentum.
The question: A girl of mass 50 kg jumps out of a rowing boat of mass 300 kg on to the bank with a horizontal velocity of 3 m/s. With what velocity does the boat move backwards?
Answer key says:
m1(mass of girl) = 50 kg
m2(mass of boat) = 300kg
v1(velocity of girl) = 3 m/s
v2 = ?
m1v1 + m2v2 = 0
How can the momentum of the whole system after the girl jumps out of the boat be 0? The boat will have some momentum right?

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

it is just same as recoil velocity of Gun..

but even in recoiling of gun, how can the final momentum be 0?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.