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

2 answers

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

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