Question

A student drops a rock from a bridge to the

water 13.1 m below.
With what speed does the rock strike
the water? The acceleration of gravity is
9.8 m/s squared

Answer in units of m/s.

Answer 1

let us use the expression v = ./2gS in both the cases.

a) In the first case g = 9.8 m/s^2 and S = 10.3 m.

So v = 14.21 m/s

b) in the second case, g = 1.64 m/s^2 and S = 4.2 m = 3.71 m/s

00

Step-by-step explanation: