Physics

Problem

A ball is thrown vertically upward from the edge of a

15\,\text{m}

high cliff with an initial speed of

10\,\text{m/s}

. Ignoring air resistance and taking

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

downward, determine the time taken by the ball to reach the ground at the base of the cliff. a)

2.0\,\text{s}

2.8\,\text{s}

3.1\,\text{s}

1.0\,\text{s}