A cyclist cycling around a circular racing track, skids because:
Correct answer: B. The centripetal force upon him is greater than limiting friction
- A. The centripetal force upon him is less than limiting friction
- B. The centripetal force upon him is greater than limiting friction
- C. The centripetal force upon him is equal to the limiting friction
- D. The friction betsseen the tyres of the cycle and road vanishes
Explanation
To move in the circular path the required centripetal force must be provided by any source. But in this case the source of centripetal force is the force friction between road and tyres. Cyclist required more friciton to overcome skidding.
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About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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