Question

If a rock of mass 1 kilogram is thrown straight upward with an initial speed of 40 m/s, how high above the point it is released will it go? Select one: a. 40 m b. 80 m c. 20 m d. 50 m

Answer 1

B

Step-by-step explanation:

H = v^2 / 2g = 40^2 / 2 (9.8) = 80m