The necessary centripetal force to the moving around a copper track is provided by:
Correct answer: D. Frictional force
- A. Centrifugal force
- B. Gravitational force
- C. Coulumbs force
- D. Frictional force
Explanation
An object moving in circular motion around a copper track has centripetal force provided by the force of friction acting upon it.
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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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