Home
Class 9
PHYSICS
A woman pulls a bucket of water of total...

A woman pulls a bucket of water of total mass 5 kg from a well which is 10 m deep in 10s. Calculate the power usked by her.

Text Solution

Verified by Experts

Total mass of bucket and water m=5 kg
Depth of the well h=10 m
Time taken t=10s
`t=10m//s^(2)`
Work done by the woman W=mgh
`=5xx10xx10J`
`=500J`
Power used by the woman `=("work done")/("time taken")`
`=500/10J//s`
`=50J//s` or 50 W
Promotional Banner

Similar Questions

Explore conceptually related problems

A person carrying 10 bricks each of mass 2.5 kg. on his head moves to a height 20 metres in 50 seconds. Calculate the power spent in carrying bricks of the person.

A boy of mass 40 kg climbs vertically upwards on a coconut tree to a height of 10m. Calculate the work done by the boy.

Calculate the power of a crane in watts, which lifts a mass of 100 kg to a a height of 10 m in 20s.

Calculate the power of a crane in watts,which lifts a mass of 100 kg to a height of 10 m in 20 s.

A boy of mass 40 kg climbs vertically upwards on a coconut tree to a height of 10m. Calculate the potential energy gained.

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find its inner curved surface area.

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find the cost of plastering this curved surface at the rate of Rs 40 per m^2 .