A person mass M is hanging from rope fastened to a stationary balloon mass m. and if the person climbs along the rope then with what velocity the balloon will move and in what direction?

A girl of mass 50 kg jumps out of a boat of mass 300 kg with horizonal velocity of 3ms^-1 . With what velocity does the boat begin to move backwards?

What is the momentum of an object of mass m moving with velocity v ?

A Merry-go-round made of a ring-like platform of radius R and mass M is revolving with angular speed omega . A person of mass M is standing on it. At one instant, the person jumps off the round radially away from the center of the round (as seen from the center of the round (as seen from the round). The speed of the round afterwards is

A ballon is ascending at the rate of 14 ms^-1 at a height of 98 m above ground when a packet is dropped from the balloon. After how much time and with what velocity does it reach the ground.

A satellite of mass 'm' is revolving in a circular orbit of radius 'r' around the earth of mass M. What is the total energy of the satellite?

A girl of 40 kg mass jumps with a horizontal velocity of 5ms'1 on a stationary trolley. The wheels of the skate are frictionless. What will be the velocity of the girl in the position of start of the trolley. Suppose no unbalanced force is acting in the horizontal direction.(mass of trolley is 3 kg)