$$ U=mgh $$

The gravitational potential energy of an object can be calculated using the formula above, where \(U\) is the potential energy of an object in joules, \(m\) is the mass of the object in kilograms, \(g\) is the gravitational constant in meters per second squared, and \(h\) is the object's height in meters. On earth, the gravitational constant is approximately \(10 \frac{m}{s^2}\). Which of the following is closest to 100 joules?

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$$ U=mgh $$

We are given a few quantities. We want to find when the potential energy of the object is 100 joules. On earth, \(g=10\). $$ 100 = m \cdot 10 \cdot h $$ $$ 10=m \cdot h$$ We simply need to find the answer choice where \(m\cdot h = 10\). Only one answer is suitable.