Hey guys, I'm new here and need some help with a physics homework question.(adsbygoogle = window.adsbygoogle || []).push({});

Two students stand on top of a building of height (h). One throws a ball straight upward at the same speed as the other student who simultaneously throws a ball straight downward toward the ground. Which of the following must be true?

Here is what I think is right so far, but I would like to double check to make sure.

a) The balls hit the ground at the same time. - False

b) The ball thrown downward hits the ground first. - True

c) The balls hit the ground at the same speed. - True

d) After both balls leave the hand, the ball thrown downward has a larger acceleration than that thrown upward. - False

e) The ball thrown downward hits the ground before the ball thrown upward reaches its peak. - Ans. Unsure, because I'm confused on this. Doesn't it depend on the height and initial speed? Which isn't given in the problem.

f) None of the above. - False

Again, I'm not sure if any of my answers are correct and I need some help to double check.

Thanks for any help in advance.

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# Homework Help: Free fall height question - true/false

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