Question

7. Calculate the gravitational potential energy of a 10 kg box on the top shelf of a closet, 2 m above the floor.

Answer 1

Answer:

P.E = 196 J

Explanation:

Given,

The mass of the box, m = 10 Kg

The height of the box from the ground, h = 2 m

The acceleration due to gravity, a = 9.8 m/s²

The gravitational potential energy of the box is given by the formula

                              P.E = mgh joules

Substituting the given values in the above equation,

                              P.E = 10 x 2 x 9.8

                                   = 196 J

Hence, the gravitational potential energy of box, P.E = 196 J