A 125g apple is growing 3.00m above the ground. The potential energy of the apple due to it's position is _______J
First we convert grams into kilos.
125g = 0,125 Kg
Remember that the gravity of Earth is ≈ 9,81 m/s2.
We use this formula:
Ep = mgh = 0,125 Kg * 9,81 m/s2 * 3m ≈ 3,68 Kg m2/s2
Check: J = Kg m2/s2