Problem

A rock thrown horizontally from a bridge hits the water below. The rock travels a smooth p...

A rock thrown horizontally from a bridge hits the water below. The rock travels a smooth parabolic path in time t.

(a) Show that the height of the bridge is gt2.
(b) What is the height of the bridge if the time the rock is airborne is 2 s?
(c) To solve this problem, what information is assumed here that wasn’t in Chapter 2?

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Solutions For Problems in Chapter 4

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