A stone is released from the top of a tall tower and drops $50\,\text{m}$ to the ground. The stone’s mass is $3.0\,\text{kg}$. With what speed does the stone strike the ground?
- A$17\,\text{m s}^{-1}$
- B$31\,\text{m s}^{-1}$
- C$54\,\text{m s}^{-1}$
- D$150\,\text{m s}^{-1}$