A body is projected with a velocity $20 \mathrm{~m} / \mathrm{s}$ at angle $60^{\circ}$ with horizon

Question

A body is projected with a velocity $20 \mathrm{~m} / \mathrm{s}$ at angle $60^{\circ}$ with horizontal. Its velocity at the highest point is

Professor PC Thomas Classes · Answer

At highest point, vertical velocity is zero. Velocity is entirely horizontal: $v_x = u \cos	heta = 20 \cos 60^{\circ} = 20 	imes \frac{1}{2} = 10 \mathrm{m/s}$.