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Determine the moment needed at the base of 30-m-tall

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Reference no: EM131241016

1. Determine the moment needed at the base of 30-m-tall, 0.12-m-diameter flag pole to keep it in place in a 20 m/s wind.

2. Two bicycle racers ride 30 km/hr through still air. By what percentage is the power required to overcome aerodynamic drag for the second cyclist reduced if she drafts closely behind the first cyclist rather than riding alongside her? Neglect any forces other than aerodynamic drag. (See Fig. 14.18 for drag coefficient data.)

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Reference no: EM131241016

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