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When the linear momentum of a body is plotted on the Y-axis against time on the X-axis, the slope of the graph represents
AForce
BAcceleration
CImpulse
DRate of force
Answer & Solution
Correct answer: A. Force
1. The slope of a momentum-time graph is the rate of change of momentum, Δp/t.
2. By Newton's second law, force equals the rate of change of momentum.
3. So the slope of the momentum-time graph gives the force.
4. Rule out impulse: impulse is the change in momentum itself, not its rate of change.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 1 "Laws of Motion", p.20_
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