Physics

Problem

A ball is dropped from a balcony

20\,\text{m}

above the ground. Take

g = 10\,\text{m}\,\text{s}^{-2}

. How much time (in seconds) will it take to reach the ground? a)

4.0\,\text{s}

1.4\,\text{s}

2.0\,\text{s}

2.8\,\text{s}