Question

Assertion (A): Equilibrium means either the body is at rest (static equilibrium) or in uniform motion (dynamic equilibrium).

Reason (R): When the resultant force is zero or there is no unbalanced force, the body is said to be in equilibrium.

• A. $A$ and$R$are true and $R$ is the correct explanation of $A$
• B. $A$ and $R$ are true, but $R$is not the correct explanation of $A$
• C. $A$ is true but $R$is false
• D. Both$A$and $R$ are false

Answer 1

The correct option is A

$A$ and$R$are true and $R$ is the correct explanation of $A$

Explanation for correct answer: Option (A)

1. When the resultant force is zero, or there is no unbalanced force, the body is said to be in equilibrium.
2. So, in equilibrium, a body will be at rest or in uniform motion.

Hence, $A$ and$R$are true and $R$ is the correct explanation of $A$