Question

A 300-lb gorilla climbs a tree to a height of 30 ft. Find the work done if the gorilla reaches that height in the following times.(a) 10 seconds w= _____ ft-lb (b) 5 seconds w= _____ ft-lb

Answer 1

a) 9000 ft-lb

b) 9000 ft-lb

Explanation:

Equation for the work:

The equation for the work done is given by:

`W = Fd`

In which F is the force needed and d is the distance. The time does not interfere on the work.

A 300-lb gorilla climbs a tree to a height of 30 ft

This means that
`F = 300, h = 30`

Thus

`W = Fd = 300(30) = 9000`

The work done in both cases is of 9000 ft-lb, as the work is not a function of time.