A projectile is fired from the origin (at y = 0 m) as shown in the diagram. The initial velocity components are and The projectile reaches maximum height at point P, then it falls and strikes the ground at point Q, which is 20 m below the launch point. Assuming air resistance is negligible, what is the horizontal component of the velocity ( V x) of the projectile at point P?

Question

A projectile is fired from the origin (at y = 0 m) as shown in the diagram. The initial velocity components are  and  The projectile reaches maximum height at point P, then it falls and strikes the ground at point Q, which is 20 m below the launch point. Assuming air resistance is negligible, what is the horizontal component of the velocity ( V x) of the projectile at point P?

bobpursley · Answer

something is missing here.

gty · Answer

A projectile is launched at a certain angle. After 4s, it hits the top of a building 500 m away. The height of the building is 50 m (assume g=10 m/s^2). the projectile was launched at angle of?