calculaye the speed of the tip of second hand pf a wacth of lrngth 1.5 cm
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P.S the watch is not having the hour and minute hands!
P.S the watch is not having the hour and minute hands!
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Tip of second’s hand covers the circumference of clock every minute (60 seconds).
Speed = Distance / Time
= (2 π r) / t
= (2 × 3.14 × 1.5 cm) / (60 s)
= 0.157 cm/s
∴ Speed of tip of second’s hand of clock is 0.157 cm/s
Speed = Distance / Time
= (2 π r) / t
= (2 × 3.14 × 1.5 cm) / (60 s)
= 0.157 cm/s
∴ Speed of tip of second’s hand of clock is 0.157 cm/s
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