Answer to Question #339764 in Quantum Mechanics for any

Question

a rock is thrown horizontally from the top of a cliff 88 m high, with a horizontal speed of 25 m/s. with what velocity does the rock hit?

Answer 1

$$v=\sqrt{v_0^2+2gh}\\ =\sqrt{25^2+2*9.8*88}=48\:\rm m/s$$