Question

If the object has 2,750J, what is the height of the shelf the object is resting on?​

Answer 1

Missing information:

The mass of the object is 15 kg.

Answer:

18.7 m

Explanation:

The gravitational potential energy of an object is given by

$U=mgh$

where

m is the mass of the object

g is the acceleration of gravity

h is the heigth of the object, relative to the ground

In this problem, we know:

U = 2750 J is the potential energy of the object

$g=9.8 m/s^2$

m = 15 kg is the mass of the object

Solving for h, we find the height of the shelf:

$h=\frac{U}{mg}=\frac{2750}{(15)(9.8)}=18.7 m$