brysonlear brysonlear

08-10-2020
Physics

contestada

A rock was dropped from a bridge over a river
If the rock was released when it was 11.2 m above the water and it took 0.550 s to reach the water, what its velocity when it was released?

Respuesta :

mali4cubs mali4cubs

08-10-2020

11.2 = 0.550u + 1/2 * 9.8 * (0.550)^2

u = 17.67 m/s

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