A 20-Kg Projectile Is Fired with Initial Velocity Components Vox =

Multiple Choice

A 2.0-kg projectile is fired with initial velocity components vox = 30 m/s and voy = 40 m/s from a point on the earth's surface. Neglect any effects due to air resistance.
-What is the kinetic energy of the projectile when it reaches the highest point in its trajectory?

A) zero joules
B) 900 J
C) 1600 J
D) 2500 J
E) 4900 J