Question

How much potential energy does a car gain if a crain lifts the car with a mass of 1,500 kg and 20 meters straight up?

Answer 1

The potential energy is given as follows:

$$E = mgh$$

where $m = 1500kg, h=20m, g = 9.8m/s^2$. Thus, obtain:

$$E = 1500\cdot 20\cdot 9.8 = 2.94\times 10^5J$$

Answer. $2.94\times 10^5J$.