Question

What is the velocity of an object that has been in free fall for 1.5s?
A. 150 m/s downward
B. 6.5 m/s downward
C. -6.5 m/s downward
D. 15 m/s downward

Answer 1

Answer:

D. 15 m/s downward

Explanation:

v = at + v₀

v = (-9.8 m/s²) (1.5 s) + (0 m/s)

v = -14.7 m/s

Rounded to two significant figures, the answer is D, 15 m/s downward.