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 becomes A)0 m/s². B)5 m/s². C)10 m/s². D)infinite. E)none of the above

Question

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When air resistance equals the weight of the sack (200 N), the net force acting on the sack becomes zero. According to Newton's second law of motion, if the net force is zero, the acceleration is also zero.

A Sack of Potatoes Weighing 200 N Falls from an Airplane