the minute hand of a wall clack is 20 cm long .Find its displacement and distance covered from 10am to 10:30am
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Angle covered in 30 min. = 180°
Distance = 2πr × 180°/360°
= 22/7 × 20
= 440/7 cm
Displacement = 20+20 = 40cm
veenaguptavg201:
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if you are in 9th standard then the formula i applied for distance is simply the circumference of a semicircle
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