A stone falls freely from rest for 20 s. Calculate the stone’s velocity after that time. The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m/s.

Question

i need to know what the velocity is.

Answer 1

Since the stone falls freely from rest, its velocity after 20 s is (9.8 m/s^2)(20 s) = 196 m/s downward.