Question

someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. neglecting air resistance, which ball has the greatest final velocity upon reaching the ground? select all that apply 1. the ball with initial upward velocity 2. they will both hit with the same velocity 3. unable to determine 4. the ball with initial downward velocity

Answer 1

2. they will both hit with the same velocity

Step-by-step explanation:

The ball which is thrown vertically upwards with a initial velocity V
`_(i)`will have the same velocity as the one thrown downwards with a velocity of V
`_(i)` when it reaches back to the edge of the cliff as no air resistance it acting on it. So the two balls have the same downward velocity at the edge of the cliff. Hence, they hit the ground with the same final velocity.