A stone is projected vertically upward with speed

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

Problem

25\,\text{m/s}

. It passes a point

A

that is

20\,\text{m}

above the point of projection twice—once while going up and once while coming down. What is its speed at point

A

? (Take

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

.) (a)

19.8\,\text{m/s}

(b)

15.3\,\text{m/s}

(c)

20.7\,\text{m/s}

(d)

12.5\,\text{m/s}