NEET 2013K

A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth

A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and…

One coolie takes 1 minute to raise a suitcase through a height of 2 m

One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes…

A particle with total energy E is moving in a potential energy region U(x)

A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted…