A ball is projected vertically upward with a speed of and later returns to the same…

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

Problem

A ball is projected vertically upward with a speed of

20\,\text{m/s}

and later returns to the same point of projection. Taking

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

, calculate the total time of flight. (a)

2\,\text{s}

(b)

4.08\,\text{s}

(c)

4\,\text{s}

(d)

8\,\text{s}