A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms^-2, the power expended is?

Similar Questions

An evidence of the wave nature of matter is ...

Which of the following will reduce the frequency of oscillation of a simple pendulum? ...

Nuclear sizes are expressed in a unit named ...

Which of the following is/are in random motion? i. Pollen grains in water ii. The molecules of h...

To convert an alternating current dynamo into a direct current dynamo, the ...

Oil rise up the wick in a lamp. The principle involves ...

An electric kettle with negligible heat capacity is rated at 2000W. If 2.0kg of water is put in it, ...

A freely suspended compass needle on the earth's surface settles in a plane called---------- ...

A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2m-2. The time ...

An electron of charge 1.6 x 10-19C is accelerated between two metal plates. If the kinetics energy o...