Physics

Problem

A stone is projected from ground level with a speed of

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

at an angle of

30^{\circ}

above the horizontal. Calculate its vertical displacement after

1.0\,\text{s}

(take

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

and upward positive). a)

+15\,\text{m}

+12\,\text{m}

+5\,\text{m}

+10\,\text{m}