A student drops a rock from a bridge to the water 10.1 m below. The acceleration of gravity is 9.8 m/s^2. With what speed does the rock strike the water?

Question

A student drops a rock from a bridge to the water 10.1 m below. The acceleration of gravity is 9.8 m/s^2. With what speed does the rock strike the water?
Answer in units of m/s.

Henry · Answer

V^2 = Vo^2 + 2g*d = 0 + 19.6*10.1 = 198 V = 14.1 m/s.

Anonymous · Answer

278.32