Physics

Problem

A projectile is fired with speed

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

60^{\circ}

to the horizontal. Take

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

. At what horizontal distance from the point of projection does the projectile first reach a height of

15\,\text{m}

? a)

21.6\,\text{m}

5.4\,\text{m}

10.8\,\text{m}

43.3\,\text{m}