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nexus9112 [7]
2 years ago
15

A student drops a rock from a bridge to the water 12.7 m below. with what speed does the rock strike the water? the acceleration

of gravity is 9.8 m/s 2
Physics
1 answer:
kolezko [41]2 years ago
7 0

The rock strike the water with the speed of 15.78 m/sec.

The speed by which rock hit the water is calculated by the formula

v=\sqrt{2gh}

v=\sqrt{2*9.8*12.7}

v=15.78 m/sec

Hence, the rock strike the water with the speed of 15.78 m/sec.

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