Question

The potential energy of a watermelon is 15.0 J. The watermelon is 3.0 m high. What is the mass of the watermelon?

g = 9.8 m/s2

Answer 1

m = 0.51[kg]

Step-by-step explanation:

Potential energy is defined as the product of mass by gravity by height.

`E_(pot)=m*g*h`

where:

Epot = potential energy = 15 [J]

m = mass [kg]

g = gravity acceleration = 9.8 [m/s²]

h = elevation = 3 [m]

Now replacing:

`E_(pot)=m*g*h\\15=m*9.8*3\\m = 0.51[kg]`