Question

A clock has a minute hand of length 14 cm. At what speed does the tip of the minute hand move in a duration of half an hour ? answer in fraction​

Answer 1

Answer:

Explanation:

distance covered by the minute hand in half an hour is

   distance = π r

here r is length of minute hand

distance = 14* 22/7

               = 44 cm

               = 44/100 m

time taken = 30min

                  = 30 * 60s

                  = 1800 s  

speed = distance /time

           = (44/100)/1800 m/s

           = 22/90000 m/s

you may use speed in cm/min too

          = 44/ 30

          = 22/15 cm/min

hope it helps

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