A Rock Is Thrown Downward from an Unknown Height Above

question 24

Multiple Choice

A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 s later. Determine the initial height of the rock above the ground.

• A) 44 m
• B) 14 m
• C) 74 m
• D) 30 m
• E) 60 m

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