A stone is thrown with speed making an angle of with the horizontal

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A stone is thrown with speed

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

making an angle of

40^{\circ}

with the horizontal. Determine the angle that its velocity vector makes with the horizontal after

1.2\,\text{s}

. Take

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