Question

A 1.0 kg rock is thrown straight upward with an initial speed of 8.0 m/s. What is its speed when it reaches a height of 1.6 m?
1/2 m v1^2 = m g h + 1/2 m v2^2

v1^2 - 2 g h = v2^2

8.0^2 - (2 * 9.8 * 1.6) = v2^2

Related Questions

A rock is thrown vertically upward with an initial speed of 100 ft/s. At the same instant another ro... ll is thrown vertically upward with an initial speed of 16 m/s. Then, 0.65 s later, a stone is thr... Rock A is thrown straight up with an initial speed of 6m/s from the top of a building 52m tall. At t...