What is the speed of the tip of a blade

Reference no: EM1384990

Q. With brakes fully applied, a 1430kg car decelerates from a speed of 74km/hr. What is the work done by the braking force in bringing car to a stop?

Q. A ceiling fan with 90{rm cm}-diameter blades are turning at 61rpm. Assume the fan coasts to a stop 25s after being turned off. What is the speed of the tip of a blade 10{rm s} after the fan is turned off? Through how numerous revolutions does the fan turn while stopping?

Reference no: EM1384990

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