Question

Which has more gravitational potential energy: a 300 N cat at a height of 6 meters or a 50 N bird at a height of 50 meters

Answer 1

Gravitational Potential energy is given by the formula

`U = mgH`

so it is product of weight of object and its height

for PE of cat weight is given as 300 N at height 6 m

`U_1 = 300 * 6 = 1800 J`

on other side we will have a bird of 50 N weight with height 50 m

`U_2 = 50 * 50 = 2500 J`

now here we can see that it depends on the product of weight and height both

so here PE of bird will be more than the PE of Cat