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)`.

How much momentum will a dumb bell of mass 10kg transfer to the floor if it falls from a height of 80cm. Take its downward acceleration to be 10 ms^-2

A coin is released inside a lift at a height of 2m from the floor of the lift. The height of the lift is 10 m. The lift is moving with an acceleration of 9 m//s^(2) downwards. The time after which the coin will strike with the lift is : (g=10 m//s^(2))

A boy of mass 50kg runs up a staricase of 45 steps in 9s. If the height of each step is 15cm, find his power. Take g = 10m//s^2

A boy of mass 50kg, runs up a staircase of 45 steps in 10s. If the height of each step is 14cm, find his power. Take "g=10ms"^(-2)

A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is (Take g = 10 m s^(-2) )

A ball is dropped onto the floor from a height of 10 m. It rebounds to a height of 5 m. If the ball was in contact with the floor for 0.01 s , what was its average acceleration during contact ? (Take g=10 ms^(-2) )

A body falling from a height of 10 m rebounds from the hard floor . It

A crane lifts a mass of 100 kg to a height of 10m in 20s . The power of the crane is (Take g = 10 ms^(-2))