Question: Problem 4 . Heather and Jerry are standing on a bridge 5 0 m above a river. Heather throws a rock straight down with a

Problem 4. Heather and Jerry are standing on a bridge 50 m above a river. Heather throws a rock straight down with a speed of 20ms. Jerry, at exactly the same time, throws a rock straight up with the same speed. Ignore air resistance.
a) Which rock has the higher speed as it hits the water? Justify your answer
b) Calculate Heather's speed and Jerry's speed
c) How much time elapses between the first splash and the second splash?
Problem 4 . Heather and Jerry are standing on a

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