Pre cal

a belt drives two flywheels whose diameters are in 30 cm and 40 cm, respectively. If the smaller wheel turns through 300 rev/min, what is the speed of the belt in mps and the angular velocity of the larger wheel in rev/min

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  1. the angular velocities of the belt-linked wheels
    ... are inversely proportional to their diameters

    so the larger wheel is ... 3/4 * 300 rpm

    300 rpm is 5 rps ... belt speed is ... π * .3 m * 5 ... mps

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