A boat of mass `40kg` is at rest. A dog of mass `4kg` moves in the boat with a velocity of `10m//s`. What is the velocity of boat (nearly)?

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?

A person weighing 60kg In a small boat of mass 140 kg which is at rest, throws a 5 kg stone in the horizontal direction with a velocity of 14m//s^(-1) . The velocity of the boat immediately after the throw is (in m//s )

A boat of mass 80 kg is floating on still water. A dog of mass 20 kg on the boat is at a distance of 10 m from the shore. The dog moves on the boat by a distance of 2m towards the shore. The distance of the dog from the shore is

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 begin to move backwards ?

A boat of mass 1000 kg is moving with a velocity of 5 m//s. A person of mass 60 kg jumps into the boat. The velocity of the boat with the person will be -

A ball of mass 1kg moving with a velocity of 15m // s undergoes a head on elastic collision with another ball of unknown mass at rest, and rebound with a velocity of 10m//s . What is the mass of the other ball?