From the edge of a rooftop, you toss a green ball upward with an initial velocity of 10 m/s and a blue ball downwards with the same initial speed. air resistance is negligible. when they reach the ground below
a. the green ball will be moving faster than the blue ball.
b. the blue ball will be moving faster than the green ball.
c. the two balls will have the same speed.
Answers: 2
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