If the length of a minute hand of a wrist watch is 1.4 cm, find the distance travelled by the tip of the minutes hand in a day.
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minutes hand is the longest hand so it is the radius=1.4cm
in a day it makes2complete angles that is2×360°=720°=x
distance covered=x/360×2Πr
=720°/360°×2Π×1.4=17.584cm
in a day it makes2complete angles that is2×360°=720°=x
distance covered=x/360×2Πr
=720°/360°×2Π×1.4=17.584cm
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