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Mr. A has mass 60 kg. When he sit in the car make center of car mass compressed with displacement 0.3 cm Give car

Mr. A has mass 60 kg. When he sit in the car make center of car mass compressed with displacement 0.3 cm Give car mass 500 kg. Calculate - Spring constant of car - Oscillation period when no person in car - Oscillation period when he sit in car

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