Respuesta :
The potential energy is the mass multiplied by the height multiplied by the earth accelerations
Ep = mgh
in your case
Ep = 4kg * 9.8m/s^2 * 1.5m = 59J
Ep = mgh
in your case
Ep = 4kg * 9.8m/s^2 * 1.5m = 59J