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7 April, 21:52

If a wheel with a radius of 70 inches spins at a rate of 600 revolutions per minute, find the approximate linear velocity in miles per hour.

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  1. 7 April, 22:04
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    This is the concept of speed:

    ω=600 rev/min=600*2π rad/min=1200 rad/min

    v=rω=70*1200π = 84,000 in/min

    converting the above in miles per hour we get:

    84000 in/min

    = (84000*1.6*10^ (-5) * 60)

    =80.64 mph
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