Before a ball rolls down a hill, it has gravitational potential energy. before a rubber ball bounces away from a surface, it has elastic potential energy.

from the list below, select the type of potential energy that allows you to throw a ball.

a.
elastic potential energy
b.
chemical potential energy
c.
gravitational potential energy
d.
human potential energy

human potential energy

Explanation:

It is given that, before a ball rolls down a hill, it has gravitational potential energy.

Before a rubber ball bounces away from a surface, it has elastic potential energy.  

Human potential energy allows us to throw a ball. While throwing a ball, we have to apply some force by our muscles in order to done some work.Also, we know that the capacity to do work is called energy.

Hence, the correct option is (D) " human potential energy ".

this would be about 43%

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle