An apple weighs 1 N. When the apple is held at rest above your head, the net force on the apple is
A)0 N.
B)0.1 N.
C)1 N.
D)9.8 N.
E)none of the above

Question

Quizplus · Accepted Answer

When the apple is held at rest above your head, it is not accelerating. Therefore, the net force on the apple must be zero, according to Newton's first law of motion. Since the weight of the apple is 1 N, the upward force of your hand supporting the apple must also be 1 N, making the net force 0 N.

An Apple Weighs 1 N