Table of Contents

- 1 What is the minimum number of forces required to keep the body in equilibrium?
- 2 What does the total force have to equal in equilibrium?
- 3 What is minimum number of forces acting on an object in a plane that can produce a zero resultant force 1 point?
- 4 Can a body be in equilibrium when only one force acts on it?

## What is the minimum number of forces required to keep the body in equilibrium?

Answer: we need minimum of two forces to keep a body in equilibrium.

**What is the minimum number of force is equal to?**

Answer: Two are the minimum number of forces of equal magnitude ina plane that keep a particle in equilibrium.

**What keeps the body in equilibrium?**

For an object to be in equilibrium, it must be experiencing no acceleration. This means that both the net force and the net torque on the object must be zero.

### What does the total force have to equal in equilibrium?

If the size and direction of the forces acting on an object are exactly balanced, then there is no net force acting on the object and the object is said to be in equilibrium. Because the net force is equal to zero, the forces in Example 1 are acting in equilibrium.

**What is the minimum number of forces of equal magnitude whose vector sum is zero?**

It is 2 because of two equal vectors having opposite direction then their vector sum will be zero.

**Is any force is required to keep the body in a circular path If yes name the force?**

it is the centripetal force that is required to keep a body in circular motion.It is because the body is forced to remain moving towards the centre. The body tries to go tangent to the path but since it is again directed towards the centre it remains going in a uniform circular motion only.

#### What is minimum number of forces acting on an object in a plane that can produce a zero resultant force 1 point?

Explanation: There should be 2 forces but should have equal magnitude in opposite direction.

**What is the minimum number of non coplanar forces required to keep a body in equilibrium?**

three

Therefore we can state that the minimum number of forces required to represent a body in equilibrium under a set of non-collinear forces is three.

**What is stability of equilibrium?**

equilibrium is said to be stable if small, externally induced displacements from that state produce forces that tend to oppose the displacement and return the body or particle to the equilibrium state. Examples include a weight suspended by a spring or a brick lying on a level surface.

## Can a body be in equilibrium when only one force acts on it?

No: equilibrium requires forces to be balanced, so it requires (at least) two forces, unless there are zero forces acting.

**When a body is subjected to two forces and the body will be in equilibrium if the two forces are?**

If only two forces act on a body that is in equilibrium, then they must be equal in magnitude, co-linear and opposite in sense. This is known as the two-force principle. The two-force principle applies to ANY member or structure that has only two forces acting on it.

**Is single force can keep the particle in equilibrium?**

Correct Option: B. When the resultant of all forces acting on a particle is zero, the particle is in equilibrium. The equilibrium of a particle to which a single force is applied may be maintained by the application of a second force that is equal in magnitude and direction, but opposite in sense, to the first force.