A sack of potatoes weighing 200 N falls from an airplane.As the velocity of fall increases,air resistance also increases.When air resistance equals 200 N,the sack's acceleration in meters per second per second is
A)0)
B)4)9.
C)9)8.
D)infinite.
E)none of these

Question

Quizplus · Accepted Answer

When air resistance equals the weight of the sack, the net force on the sack is zero, so the acceleration is zero.

A Sack of Potatoes Weighing 200 N Falls from an Airplane.As