An engine is attached to a wagon through a shock absorber of length 1.5 m. The system with a total mass of 40,000 kg is moving with a speed of 72 kmh ¹ when the brakes are applied to bring it to rest. In the process of the system being brought to rest, the spring of the shock absorber gets compressed by 10 m. If 90% of energy of the
An engine is attached to a wagon through a shock absorber of length 1.5 m. The system with a total mass of 40,000 kg is moving with a speed of 72 kmh ¹ when the brakes are applied to bring it to rest. In the process of the system being brought to rest, the spring of the shock absorber gets compressed by 10 m. If 90% of energy of the
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Transcribed Image Text:An engine is attached to a wagon through a shock
absorber of length 1.5 m. The system with a total
mass of 40,000 kg is moving with a speed of
72 kmh ¹ when the brakes are applied to bring it to
rest. In the process of the system being brought to
rest, the spring of the shock absorber gets
compressed by 1.0 m. If 90% of energy of the
wagon is lost due to friction, the spring constant is
× 105 N/m.
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