Physics

Problem

A ball is to be thrown so that it lands

160\,\text{m}

away on level ground. If the initial speed available is

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

and

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

, which one of the following projection angles will achieve the required range? a)

15^{\circ}

45^{\circ}

40^{\circ}

60^{\circ}