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A girl throws a stone from a bridge. Consider the following ways she might th

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A girl throws a stone from a bridge. Consider the following ways she might th

A girl throws a stone from a bridge. Consider the following ways she might throw the stone. The speed of the stone as it leaves her hand is the same in each case.
Case A:   Thrown straight up.
Case B:   Thrown straight down.
Case C:   Thrown out at an angle of 45° above horizontal.
Case D:   Thrown straight out horizontally.
In which case will the speed of the stone be greatest when it hits the water below?
A)

Case A
B)

Case B
C)

Case C
D)

Case D
E)

The speed will be the same in all cases.

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