## Which Best Explains Parallel Forces? Select Two Options.

**a) Left and right forces that can be added together**

b) Right and upward forces that cancel each other out

c) Upward and downward forces that can be added together

d) Left and downward forces that cancel each other out

e) Addition of parallel forces that cannot result in a negative force

f) Differences in parallel forces that result in a net force of zero

**Parallel forces are forces that act in the same plane and never intersect. **

## Balanced Forces

According to Newton’s first law of motion, when forces are in balance there is no net force and therefore no acceleration (change in speed or direction) in the system.

This, however, does not mean the system isn’t in motion, a spinning top move, and the points on the top change velocity constantly, but without an outside force the nature of its motion will not change.