Question

What is the work for a pulley system that lifts 9.8 N 10cm?

Answer 1

`0.98J`

Explanation:

`"Work (J)" = "Force (N)" xx "Distance (m)"` or
`W = FxxD`

The force is `9.8N`
The distance is `10cm`
The distance in metres is `"10cm" /100 = 0.1m`

`W = 9.8Nxx0.1m = 0.98J`

Always be sure that you use the correct units. In this case, Newtons for the force and metres for the distance