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SSC Selection Post 2022 PYQ — Question 43

SSC Selection Post - Matriculation Level - 3 Feb 2022 - Shift 2 • General Awareness • Q43

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Impulse is defined as the change in:

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Correct answer: B

Explanation

The correct answer is Option 2 i.e. linear momentum.

In physics, impulse (J) is fundamentally defined as the change in an object's linear momentum (Δp). This is encapsulated by the Impulse-Momentum Theorem. Linear momentum (p) itself is the product of an object's mass (m) and its velocity (v), i.e., p=mv.

Therefore, an impulse delivered to an object causes its momentum to change. Mathematically, this is expressed as J=Δp=pfinal​−pinitial​. It can also be related to force by J=Fnet​Δt, where Fnet​ is the net force applied and Δt is the duration over which it acts. This theorem is crucial for analyzing collisions and impacts.