*An object has a gravitational potential energy of 750 joules and is sitting on a shelf 3.0 meters above the ground. what is the object’s mass
tbh i don’t really think I’m right
You forget to divide by the gravitational acceleration. Your answer is in Newtons –> divide it by 9.81m/s^2 to get it in kg and your answer is correct.
Gravitational potential energy = m * g * h = m * 9.8 * 3 = m * 29.4
m * 29.4 = 750
m = 750 ÷ 29.4
This is approximately 25.5 kg. You forgot to use g in the equation for the gravitational potential energy.