Asked in ETEA MDCAT 2013 2013
A mass accelerates uniformily when the resultant force acting on it:
Correct answer: B. Is constant but not zero
- A. Is zero
- B. Is constant but not zero
- C. Increases uniformly with respect to time
- D. Is proportional to the displacement of the mass from a fixed point
Explanation
A mass accelerates uniformly when the resultant force acting on it is constant but not zero.
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About Newton's Laws of Motion
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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