A man weighing 60 kg climbs up a staircase carrying a load of 20 kg on his head. The stair case has 20 steps each of height 0.2 m. If he takes 10 s to climb find his power

A man weighing 100 kg carriesa load of 10kg on his head. He jumps from a tower with the load on his head. What will be the weight of the load as experienced by the man?

A man carries a load of 5 kg on his head through a distance of 10 m. the minimum amount of work is done when he

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

Amit weighing 60 kgf climbs up a ladder of height 10 m in 15 minutes. Calculate the increase in his potential energy and the power spent by him. Take 1 kgf = 10 N.

A Boy weighing 40 kg climbs up a stair of 30 steps each 20 cm high in 4 minutes and a girl weighing 30 kg does the same in 3 minutes. Compare: The power developed by them.

A man M_(1) of mass 80 kg runs up a staircase in 15 s . Another man M_(2) also of mass 80 kg runs up the same staircase in 20 s . The ratio of the power development by then will be:

A girl of mass 40 kg climbs up stairs by spending 800 J of energy. How high does the girl climb up ? [Take g=10 ms^(-2) ]

A boy weighing 25 kgf climbs up from the first floor al a height of 3 m above the ground to the thind floor al a height of 9 m above the ground. What will be the increase in his gravitational potential energy? (Take g = 10 N kg^(-1) )

Two girls each of weigth 400N, climb up a rope through a height of 8m. We name one of the girls A and the other B. Girl A takes 20s while B takes 50s to accomplish this task. What is the power expneded by each girl.

A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in 4 minutes and a girl weighing 30 kgf does the same in 3 minutes.Compare: (i)the work done by them.and (ii)the power developed by them .