Answer
The correct answer is:
(a) less than $g$
Work Step by Step
The correct answer is:
(a) less than $g$
Let $F$ be the force of air resistance which is directed upward while the ball is on the way down. We can find the acceleration:
$\sum F = ma$
$mg-F = ma$
$a = g-\frac{F}{m} \lt g$
The magnitude of the acceleration is less than $g$
