A pebble rolls off the roof of Science Hall and falls vertically. Just before it reaches the ground, the pebble's speed is 17 m/s. Neglect air resistance and determine the height of Science Hall.
A)42 m
B)33 m
C)26 m
D)21 m
E)15 m

Question

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The Answer of A pebble rolls off the roof of Science Hall and falls vertically. Just before it reaches the ground, the pebble's speed is 17 m/s. Neglect air resistance and determine the height of Science Hall.
A)42 m
B)33 m
C)26 m
D)21 m
E)15 m

A Pebble Rolls Off the Roof of Science Hall and Falls