An Olympic bodybuilder lifts a 1325 kg weight a vertical distance of 2.5 m off the ground. What potential energy do the weights have now?
a
34,462.5 J
b
32,462.5 J
c
33,462.5 J
d
31,462.5 J
The potential energy of an object is given by the equation PE = mgh, where m is the mass of the object (in kg), g is the acceleration due to gravity (approximately 9.8 m/s^2), and h is the height (in m).
In this case, the mass of the weight is 1325 kg and the height is 2.5 m. Plugging these values into the equation, we have:
PE = (1325 kg)(9.8 m/s^2)(2.5 m)
= 32,462.5 J
Therefore, the potential energy of the weights is 32,462.5 J.
So, the correct answer is (b) 32,462.5 J.