A stone is thrown with speed at an angle to the horizontal

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A stone is thrown with speed

25\,\text{m s}^{-1}

at an angle

60^{\circ}

to the horizontal. Using

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

, determine the time (to two significant figures) taken to reach half of its maximum height during the upward journey. (a)

1.08\,\text{s}

(b)

3.70\,\text{s}

(c)

0.63\,\text{s}

(d)

0.49\,\text{s}