Question

A 750 g ball is raised 3 m off the ground and then thrown. What is the potential energy

of the ball before the throw?

Answer 1

22.05 J

Step-by-step explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass in kg

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question

750 g = 0.75 kg

We have

PE = 0.75 × 9.8 × 3

We have the final answer as

22.05 J

Hope this helps you