Question

A woman applies a force of 300 Newtons to push a stroller 100 meters. It takes her

60 seconds to perform this work. Use the equations W = Fd and P = W x T
calculate her power.

Answer 1

Work done by the woman is 500 joule per second.

Explanation:

Force applied by the woman = 300 Newtons

Total displacement due to force = 100 meters

Work done = Force applied × Displacement due to force

= 300 × 100

= 30000 Joule

Since, Power =
`\frac{\text{Work done}}{\text{Time taken to perform the work}}`

=
`(W)/(t)`

=
`(30000)/(60)`

= 500 Joule per second

Therefore, work done by the woman is 500 joule per second.