The driver of a 1000 kg car tries to turn through a circle of radius 100m on an unbanked curve at a speed of 10 m/s. The actual frictional force between the tyres and the slippery road has a magnitude of 900 N. The car:
Correct answer: B. slides off to the outside of the curve
- A. slides into the inside of the curve
- B. slides off to the outside of the curve
- C. makes the turn
- D. Makes the turn only if it goes faster
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. In this case frictional force does not provide necessary centripetal force. So, the car slides off to the outside of the curve.
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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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