he length of a minute hand of a clockis 7 cm. Find out the average spe – InterviewSolution

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he length of a minute hand of a clockis 7 cm. Find out the average speed and average velocity (in cm/min) of the tip of the minute hand when it movesduring a time interval from 3: 15 pm to 3: 45 pm?

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Answer:

where, R = LENGTH of MINUTE hand

θ = angle moved by MINUTES hand

distance covered= 7×3π/2

=32.98π

velocity=distance/time

=32.98/45×60

$43.97 \times {10 }^{ - 5} {ms}^{ - 1}$

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