A girl of mass `40kg` jumps with a horizontal velocity of `5m//s` onto a stationary cart with frictionless wheels. The mass of the cart is `3kg`. What is her velocity as the cart starts moving? Assume that there is no external unbalanced force working in the horizontal direction.

A girl of mass 40 kg jumps with a horizontal velocity of 5 in ms^(-1) onto a stationary cart with frictionless wheels. The mass of the cart is 3kg. What is her velocity as the carts starts moving ? Assume that there is no external unbalanced force working in the horizontal direction.

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)

A boy of mass 50 kg jumps with horizontal velocity of 1 m/s on to a stationary cart. If mass of the cart will be 5 kg[Assume friction between the wheels the cart and road is zero ]

A boy of mass 50 kg jumps with horizontal velocity of 1 m/s on to a stationary cart. If mass of the cart will be [Assume friction between the wheels the cart and road is zero ]

(i) How much momentum will a dumb-bell of mass 10kg transfer to the floor if it falls a height of 80 cm ? Take its downward acceleration to be 10 m//s^(2) . (b) A girl of mass 40 kg running at a speed of 5m//s horizontally jumps onto a stationary cart with frictionless wheels. The mass of the cart is 3 kg . What is her velocity as the cart starts moving?

Suppose a child of mass 40 kg running on a horizontal surface with a velocity of 5m/s. Jumps on a stationary skating board of mass 3kg while running. If there is no other force acting horizontally (assuming the frictional force on the wheels to be zero), calculate the velocity of the combined system of child and the skating board.

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 ?