An apple weighing 3 newtons hangs, motionless, from a tree branch. The net force on the apple is
A) impossible to determine from the information that is given.
B) 3 newtons downward.
C) 6 newtons downward.
D) 3 newtons upward.
E) None of the above.

Question

Quizplus · Accepted Answer

The apple is motionless, meaning it is in equilibrium. The net force on the apple is zero because the gravitational force downward is balanced by the tension force upward from the branch.

An Apple Weighing 3 Newtons Hangs, Motionless, from a Tree