PLEASE HURRYY!!!!The diagram shows two balls released from a device at the same time. The ball on the left falls freely from res
t, and the ball on the right is launched horizontally Which best compares the vertical motion of the two balls? A)Both balls have constant velocity and are acted on by gravity.
B)Both balls are acted on by gravity and are accelerating downward.
C)Both balls are pulled downward and have zero acceleration.
D)Both balls have zero acceleration and have constant velocity.
Horizontal motion has no effect on vertical motion. Gravity has the same effect on both balls' vertical motion ... they both accelerate downward at 9.8 m/s^2. (B)
Even more interesting: A bullet fired horizontally and another bullet DROPPED from the gun's muzzle at the same time both hit the ground at the same time ... Maybe miles apart, but their vertical motions are identical.
The only one that doesn't have a time unit that is squared is the one that is a label for speed or velocity. Acceleration has a label with the time unit squared, like m/s/s. Choice D is the only unit for speed/velocity.
