A 10.0 N force is pulling up on the ring of spring scale that weighs 2.0 N. If an 8.0 N mass is attached to the bottom hook of the scale, the scale reading would be
A) 8.0 N.
B) 2.0 N.
C) 10.0 N
D) 0 N.
E) 12.0 N

Question

Quizplus · Accepted Answer

The scale reading is the net force acting on the scale. The 10.0 N force pulling up and the 8.0 N mass pulling down result in a net force of 8.0 N upward, which is the reading on the scale.

A 100 N Force Is Pulling Up on the Ring of of Spring