James and John Dive from an Overhang into the Lake

question 5

Multiple Choice

James and John dive from an overhang into the lake below.James simply drops straight down from the edge.John takes a running start and jumps with an initial horizontal velocity of 25 m/s.Compare the time it takes each to reach the lake below if there is no air resistance.

• A)James reaches the surface of the lake first.
• B)John reaches the surface of the lake first.
• C)James and John will reach the surface of the lake at the same time.
• D)Cannot be determined without knowing the mass of both James and John.
• E)Cannot be determined without knowing the weight of both James and John.

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