Question

calculate the speed of tip of minute hand of a clock whose length is 7 cm

Answer 1

calculate the speed of tip of minutes hands of a clock whose length is 7 ... Radius(r) = 7cm = 7/100 m .

Answer 2

Hey here is your answer
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r = 7 cm
t = 3600 sec

Linear velocity =
$= \frac{2\pi \: r}{t} \\ \\ = \frac{2 \times \frac{22}{7} \times \frac{7}{100} }{3600} \: \: m {s}^{ - 1} \\ \\ = \frac{44}{3600 \times 100} \: \: m {s}^{ - 1} \\ \\ = \: 12222.2 \: \: m {s}^{ - 1}$
r = 7 cm
t = 3600 sec
Angular velocity =
$= \frac{2\pi}{t} \\ \\ = \frac{360}{3600} \: \: m {s}^{ - 1} \\ \\ = 0.1 \: \: m {s}^{ - 1}$
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