Answered: Standing at the base of one of the… | bartleby

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Standing at the base of one of the cliffs of Mt.
Arapiles in Victoria, Australia, a hiker hears a
rock break loose from a height of 105.0 m. He
can't see the rock right away, but then does, 1.50
s later. (a) How far above the hiker is the rock
when he can hear it? (b) How much time does
he have to move before the rock hits his head?

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