A projectile must pass through a point that is horizontally and vertically above its…

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

Problem

A projectile must pass through a point that is

30\,\text{m}

horizontally and

10\,\text{m}

vertically above its launch point exactly

2.0\,\text{s}

after launch. Neglect air resistance and take

g=9.8\,\text{m}\!\cdot\!\text{s}^{-2}

. What launch angle relative to the horizontal will satisfy this condition? (a)

59^{\circ}

(b)

45^{\circ}

(c)

18^{\circ}

(d)

33^{\circ}