Question:
The one which does not represent a force in any context is
The one which does not represent a force in any context is
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Impulse tells how much momentum changes, while force tells how strongly an object is pushed or pulled.
Updated On: May 2, 2026
- friction
- impulse
- tension
- weight
- viscous drag
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The Correct Option is B
Solution and Explanation
Concept:
Force is defined as an interaction that can change the state of rest or motion of a body. It is a vector quantity having both magnitude and direction and is measured in newtons (N). Forces are broadly classified into:
• Contact forces: friction, tension, viscous drag
• Non-contact forces: gravitational force (weight) Impulse is a physical quantity defined as: \[ \text{Impulse} = \text{Force} \times \text{Time} \] It represents the total effect of a force acting over a time interval and is equal to the change in momentum.
Step 1: Examine each option:
• Friction: A resistive force between surfaces → Force
• Tension: Force transmitted through a string → Force
• Weight: Gravitational force → Force
• Viscous drag: Resistive force in fluids → Force
• Impulse: Product of force and time → Not a force
Step 2: Key reasoning: Impulse depends on force but is not itself a force. It is a derived quantity. Final Conclusion: Only impulse does not represent a force.
• Contact forces: friction, tension, viscous drag
• Non-contact forces: gravitational force (weight) Impulse is a physical quantity defined as: \[ \text{Impulse} = \text{Force} \times \text{Time} \] It represents the total effect of a force acting over a time interval and is equal to the change in momentum.
Step 1: Examine each option:
• Friction: A resistive force between surfaces → Force
• Tension: Force transmitted through a string → Force
• Weight: Gravitational force → Force
• Viscous drag: Resistive force in fluids → Force
• Impulse: Product of force and time → Not a force
Step 2: Key reasoning: Impulse depends on force but is not itself a force. It is a derived quantity. Final Conclusion: Only impulse does not represent a force.
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