The dimension of force is____________________?
Correct answer: A. MLT-2
- A. MLT-2
- B. ML2T-2
- C. ML2T2
- D. ML-2T-2
Explanation
From Newton's second law, force = mass x acceleration. Mass has dimension M and acceleration has dimension LT^-2, so force has dimension MLT^-2. ML²T^-2 is the dimension of work or energy, which is the common distractor.
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Newton’s laws explain inertia, the relation between net force and acceleration, and action-reaction pairs. Questions involve free-body diagrams, balanced and unbalanced forces, F = ma, force as the rate of change of momentum, and identifying genuine third-law pairs, which act on different bodies.
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