Question

a marble is on a table 2.4 m above the ground. what is the mass of the marble if it has a gravitational potential energy of 568 J?

Answer 1

from the equation;
P.E=m×a×h
568=m×10(constant)×2.4
m=568÷10×2.4
m=568÷24
m=23.6gram.

Answer 2

Mass of the object, m = 24.14 kg

Step-by-step explanation:

It is given that,

Height above the ground, h = 2.4 m

Gravitational potential energy, PE = 568 J

We need to find the mass of the marble. The definition of gravitational potential energy is given by the product of mass, height and acceleration due to gravity. i.e.

PE = mgh

`m=(PE)/(gh)`

`m=(568\ J)/(9.8\ m/s^2* 2.4\ m)`

m = 24.14 kg

So, the mass of the object is 24.14 kg.