Question

if 5000 J of work is used to raise a 102 kg crate to a shelf in a warehouse, how high was the crate raised? (express your answer in units of meters

Answer 1

Work done is equal to change in potential energy

change in potential energy is equal to $m(\Delta h)g=5000$

$102\times\Delta h\times10=5000\\\Delta h=4.9m$

So the crate was raised by 4.9 metres