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8_murik_8 [283]
3 years ago
6

A ball dropped from a bridge takes 3.0 seconds to reach the water below. How far is the bridge from the water?

Physics
1 answer:
Komok [63]3 years ago
8 0
Since it is dropped, initial velocity u = 0

Using s = ut + (1/2)gt^2,        putting u = 0,  g = 10 m/s^2

s =(1/2)gt^2,                  t = 3s

s = 0.5 * 10 * 3 *3

s = 45 m.

The bridge is 45m above the water.
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