The minute hand of a clock is 7cm long. Calculate the displacement and distance covered by it from 8a.m to 8:30a.m
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Answer: Distance covered= 22cm; displacement= 14cm
Explanation:
The minute hand makes half a revolution of a circle
So distance travelled is half the circumference of a circle of radius 7 cm
Distance= [2 * (22/7) * 7] / 2 = 22cm
Displacement of the minute hand would be twice the radius of the circle as displacement is the shortest distance travelled by the object
Displacement = 2 * 7 = 14cm
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