physics?

The minute hand of a bedside clock is 2.5 cm long. In order for the clock to keep proper
time, the minute hand should maintain an average angular velocity of

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  1. IT makes one round (2PI radians) per hour,

    speed= 2PIrad/hr*1hr/3600sec*2.5cm or
    speed= 0.00436332313 cm/second

  2. They ask for an angular velocity. That would be independent of the minute hand's length, and would be (2*pi rad/h)/(3600 sec/h) = 1.745*10^-3 rad/s

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