Physics

Problem

A ball is thrown vertically downward from a balcony with a speed of

5\,\text{m\,s}^{-1}

. The ground is

30\,\text{m}

below the balcony. How long will the ball take to reach the ground? (Take

g=9.8\,\text{m\,s}^{-2}

.) a)

1.5\,\text{s}

2.5\,\text{s}

2.0\,\text{s}

3.0\,\text{s}