Question

Change in v =9.8m/s 2 times t

Answer 1

v = 39.2 m/s

Explanation:

They gave you the equation for velocity during freefall in picture2 as:

v = 9.8t m/s

they ask you what the value of v (velocity) is after t=4 sec.

Just plug in t=4 into the equation.

v = 9.8t

v = 9.8(4)

v = 39.2 m/s