If the minute hand of a big clock is 1.12 m long, find the rate at which its tip is moving in centimeter per minute.

1 Answer | Add Yours

justaguide's profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

Posted on

The minute hand of a clock completes 1 circle in a minute. As the length of the minute hand is 1.12 m, the tip moves in a circle with a circumference of 2*pi*1.12 = 2.24*pi m.

This distance is covered in 1 minute

Therefore the rate of the tip of the minute hand in centimeter per minute is 2.24*100*pi cm/min

Rate in cm/min = 224*pi cm/min

We’ve answered 319,424 questions. We can answer yours, too.

Ask a question