Suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. whats its speed (in m/s) of the object after falling 2 seconds?

Question

Physics

Carson Haney

25 June, 02:42

Suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. whats its speed (in m/s) of the object after falling 2 seconds?

+3

Answers (1)

Know the Answer?

Kelsie · Answer 1

19.6 m/s

Explanation:

If we take down to be positive, the acceleration due to gravity is 9.8 m/s².

Acceleration = change in velocity / change in time

a = Δv / Δt

9.8 m/s² = (v - 0 m/s) / 2 s

v = 19.6 m/s

The speed after 2 seconds is 19.6 m/s.