Question

A force of 49 Newtons is applied to a rock, which causes it

to be lifted 2 meters in 5 seconds. How much power is
exerted during this time?

Answer 1

19.6Watts

Step-by-step explanation:

Given parameters:

Force applied = 49N

Distance = 2m

Time = 5s

Unknown:

Power = ?

Solution:

Power is the rate at which work is being done;

Power =
`(Work done )/(time)`

Work done = force x distance = 49 x 2 = 98J

So;

Power =
`(98)/(5)` = 19.6Watts