A projectile is launched vertically upward at 50 m/s. If air resistance is negligible, its speed upon returning to its starting point is
A) 50 m/s.
B) more than 50 m/s.
C) less than 50 m/s.

Question

Quizplus · Accepted Answer

In the absence of air resistance, the speed of the projectile when it returns to its starting point will be the same as its initial speed due to the conservation of mechanical energy.

A Projectile Is Launched Vertically Upward at 50 M/s