Question

The work done against gravity in moving a box with a mass of 5 kilograms through a height of 3 meters is approximately ......... ?

Steps please, thank you^^"

Answer 1

see below

Explanation:

When we lift a box through some height, its potential energy increases which is equal to the work done on it to raise it.

Change in potential energy = work done

`Delta U =W=mgh=5*9.8*3=147` `J`