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Standing at the base of one of the cliffs of Mt. Arapiles
Chapter 25, Problem 51PE(choose chapter or problem)
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?
Questions & Answers
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?
ANSWER:Step-by-step solution 51PE Step 1 of 4 The distance traveled by the rock in time inter val of is, Here, y is the final position, yo is the initial position, u is the initia l velocity, is the time in terval and is the acceleration of the rock.