A projectile is fired from the origin with velocity at an angle with the -axis

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

Problem

A projectile is fired from the origin with velocity

v_0

at an angle

\theta

with the

x

-axis. The speed of the projectile at an altitude

h

is (1)

v_0\cos\theta

(2)

\sqrt{v_0^2-2gh}

(3)

\sqrt{v_0^2\sin^2\theta-2gh}

(4) None of these