## College Physics (4th Edition)

$U = mgh$ Let x be the units of $h$. $kg\cdot m^2 \cdot s^{-2} = (kg)(m\cdot s^{-2})(x)$ $x = \frac{kg\cdot m^2 \cdot s^{-2} }{(kg)(m\cdot s^{-2})} = m$ The units of $h$ are m (and note that m stands for meters.) The correct answer is (d) m