Question

Use g = 9.8 m/s2. If 5,010 J of work is used to raise a 137 kg crate to a shelf in a warehouse, how high was the crate raised?

Answer 1

I got `2.9m`

Explanation:

The system Potential Energy will pass from zero (at the ground) to:
`U=mgh` (through work) where `h` is the height.
We get:

`5010=137*9.8*h`

rearranging:

`h=5010/(173*9.8)=2.9m`