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Can an object be in the mechanical equilibrium when only a single force acts on it? Explain.

Question:

Can an object be in the mechanical equilibrium when only a single force acts on it? Explain.

Mechanical Equilibirum:

{eq}\\ {/eq}

Mechanical equilibrium refers to a state of an object or a system in which the object maintains its state of rest or uniform motion. In such a state, the momentum of the object also remains constant.

If the object is at rest, then the equilibirum is referred to as 'static equilibirum'.

Answer and Explanation: 1

{eq}\\ {/eq}

Mechanical Equilibrium is defined as the state in which the net force acting on an object or a system is zero.

{eq}\sum F_i=0 {/eq}, where

  • {eq}F_i {/eq} is the {eq}i\rm \ th {/eq} force acting on the object.

If only a single force is acting on the object, then the net force acting on the object is equal to that single force. Hence the object can not be in a state of mechanical equilibrium in this condition.

To bring this object to mechanical equilibrium, a force equal and opposite to the first force must be exerted to the object so that the net force adds up to zero.



Learn more about this topic:

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Force in Physics: Definition & Examples

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Chapter 4 / Lesson 7
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Physical forces are all around us. Learn the defining characteristics of forces in physics, look at some examples, and test your understanding with a short quiz.


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