Understanding Force Systems

What is a force system?

• A single force acting on a body

• Forces acting in opposite directions

• A group of forces acting on different bodies

• The number of forces acting simultaneously on a body

Which of the following describes coplanar forces?

• Forces acting in different planes

• Forces not passing through a common point

• Forces acting in a single plane

• Forces acting in a straight line

What are collinear forces?

• Forces passing through a common point

• Forces acting in a single plane

• Forces acting in a single straight line

• Forces not acting in a straight line

How are concurrent forces characterized?

• Forces acting in parallel

• Forces acting in different directions

• Forces not passing through a common point

• Forces passing through a common point

What distinguishes like parallel forces from unlike parallel forces?

• Like parallel forces act in the same direction, unlike parallel forces act in different directions

• Like parallel forces act in different planes, unlike parallel forces act in the same plane

• Like parallel forces do not pass through a common point, unlike parallel forces do

• Like parallel forces act in a straight line, unlike parallel forces do not