Question

A forklift does 450 J of work to lift a 150 N hot tub. How high is the hot tub lifted? Round your answer to the nearest whole number.

The hot tub is lifted BLANK m.

Answer 1

The hot tub is lifted 3 m.

Answer 2

There are already 2 givens, hence we can do direct substitution to get the answer. To make the process simpler, derive the distance formula from the Work formula.

Work = Force x Distance

Distance =
`(Work)/(Force)`


Work is 450J while the force is 150N hot tub

To get the proper units, get the equivalent of Joule to eliminate newton. A joule Is equal to 1 N-m

Distance =
`(450N-m)/(150N)`
Distance = 3m

Hence, the hot tub is lifted 3 meters.