A stone is projected vertically upward with a speed of 20 m/s.

a. What is its velocity at the end of 2s?
b. What is the height reacted after 2s?

1 answer

v = Vi - g t
v = 20 - 9.81(2)

h = Vi t - 4.9 t^2
h = 20(2) - 4.9 (4)