Question

When the height is doubled, what happens to the potential energy of a body.

Answer 1

Step 1. Given data,

$(h\text{'}=2h)$

Step 2. Finding the potential energy of a body

$PE=mgh$

When height is doubled, $(h\text{'}=2h)$then potential energy is given by

$PE\text{'}=mg\left(2h\right)$

$=2mgh$

$PE\text{'}=2PE$

Hence, when height is doubled, potential energy is also doubled.