System of Forces

Forces whose line of actions meet at one point are called

• Coplanar forces

• Concurrent forces

• Non-coplanar forces

• Non-concurrent forces

A single force which will balance the system of force is

• Resultant

• Reaction

•  Equilibrant

• None of the above

A single force which will produce the same effect as a system of forces is called as

• Resultant

• Equilibrant

• Active force

• Reactive force

The conditions of equilibrium for coplanar concurrent forces are

• ΣF_x=0

• ΣF_y =0

• ΣF_x = 0 and F_y= 0

• ΣM =0

Resultant of two forces is 90N, when their direction is same, and 50 when they act opposite to each other then the forces are

• 140 N and 40 N

• 70 N and 20 N

• 65 N and 30 N

• 14 N and 5 N

• From the point to find moment about, to SPECIFICALLY the TAIL of force vector

• From any point on the line of action of force, to the point to find moment about

• From the point to find moment about, to any point on the line of action of force

• From the point to find moment about, to SPECIFICALLY the TIP of force vector

Collection of forces acting at specificfied location

• Moment of force

• Force system

• Force couple

• Resultant force

Force system in which all forces are parallel to each other.

• Concurrent force system

• Parallel force system

• Nonconcurrent force system

• Force-couple system

A force system in which the forces are not acting on the same point and at the same time not parallel.

• concurrent force system

• parallel force system

• Non-concurrent force system

• force-couple system

It is the rotational effect of forced into a specific point point or in a body.

• Moment of force

• Resultant

• Couple

• Principle of moments