Electric drill, rolling ball, wheel of a moving car, pendulum of a wall clock,spinning ball. Find the odd one out.

pendulum of a wall clock

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Electric drill

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wheel of a moving car

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spinning ball

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Solution

The correct option is A pendulum of a wall clock
Pendulum of a wall clock- It is in periodic motion. Rest all are in multiple motion. The restoring force is proportional to displacement .While electric drill, rolling ball etc are in multiple motion like rotational +translational or Vibrational motion.

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