Questions
N bullets each of mass m kg are fired with a velocity v ms-1 at the rate of n bullets per second, upon a wall. The reaction offered by the wall to the bullets is given by
detailed solution
Correct option is A
The reaction force offered by the wall to the bullets = the force exerted by bullets on the wall (third law of motion) = the rate of change of momentum of bullets (second law of motion). Now, total mass of N bullets = Nm. Momentum of N bullets = Nmv. Time t=NnSo, the change of momentum per second = NmvNn=nmvTalk to our academic expert!
Similar Questions
A nucleus decays by emitting an alpha particle of speed . The recoil speed of the residual nucleus is (in )
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests