A load of 100 kg is pulled up by 5 m. Calculate the work done. (`g = 9.8 m//s^(2)`)

A load of 100 kg is pulled upwards by 5 m. Calculate the work done. [g = 9.8 m//s^(2)]

A man weighing 70kg carries a weight of 10kg on the top of a tower 100 m high. Calculate the work done by the man. (g = 10m//s^2)

An object of 100 kg is lifted to a height of 10 m vertically. What will be the work done ? [g = 9.8 m//s^(2)]

A man weighing 70 kg carries a 30 kg box to the top of a building 20 m high. Calculate the work done by the man (take g = 9.8 ms^(-2) ).

The mechanical advantage of a machine is 5 and its efficiency is 75%. A load of 300 kgf is lifted with the help of this machine up to the height of 15 m. Calculate the work done by the machine. (g = 10 m s^(-2) )

A weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. Calculate :(i) the work done,and (ii)The power developed by him .Take g =10 N kg^(-1)

A person of mass 50 kg climbs a tower of height 72 metre. The work done is [g = 9.8 m//s^(2)]

A body of mass 100 kg is lifted up by 10 m. Find : (i) the amount of work done. (ii) potential energy of the body at that height (value of g = 10 m//s^(2) ).

A wire of mass 0.5 gram and length of 0.5 m is under a tension of 2 kg wt. Calculate the frequency of its fundamental mode. (g = 9.8 m/s^2)

A crane pulls up a car of mass 500 kg to a vertical height of 4 m. Calculate the work done by the crane.