Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker
Question:
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 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 see it?
(b) How much time does he have to move before the rock hits his head?
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