From the roof of a high building

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

From the roof of a

20\,\text{m}

high building, a ball is thrown vertically upward with a speed of

10\,\text{m/s}

. How long will it take to reach the ground level? (Take

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

downward.) (a)

1.3\,\text{s}

(b)

4.1\,\text{s}

(c)

3.3\,\text{s}

(d)

2.0\,\text{s}

Related theory

Browse the problem library