Question

a projectile, fired with unknown initial velocity, lands 20 second later on the side of a hill, 300m away horizontally and 45m vertically above its starting point. what is the vertical component of its initial velocity

Answer 1

Explanation:

The initial vertical velocity is the vertical component of the initial velocity: v 0 y = v 0 sin θ 0 = ( 30.0 m / s ) sin 45 ° = 21.2 m / s .