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The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the elevator's motor. The elevator is moving upward at a speed of 1.5 m/s . It then slows to a stop, while the cylinder turns one complete revolution. How long does it take for the elevator to stop?

The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the elevator's motor. The elevator is moving upward at a speed of 1.5 m/s . It then slows to a stop, while the cylinder turns one complete revolution. How long does it take for the elevator to stop?

The answer is :

5.0 s

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