Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.
How much time elapses between the first splash and the second splash?
1 answer
a. wouldn't it just be the amount of time the rock thrown upward takes to pass the bridge on the way down?
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