A stone is dropped from a cliff and falls a vertical distance of before hitting the…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A stone is dropped from a cliff and falls a vertical distance of

30\,\text{m}

before hitting the water below. Assuming

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

, how long was the stone in the air? (a)

3.1\,\text{s}

(b)

1.7\,\text{s}

(c)

2.5\,\text{s}

(d)

4.5\,\text{s}