a farmer is moving around a circular field of radius 10 metre in 30 seconds find the displacement and the distance travelled at the end of 2 minutes 45 seconds
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Answer:
displacement is 0 and distance is 2.61
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3
Answer:
Circumference of circle = 2πr
= 2×π ×10m
= 20 π m
So, farmer covered distance in 30 seconds = 20π
Farmer covered distance in 1 second =20π/30= 2π/3 m
Farmer covered distance in 2min 45sec=(2π/3)×165=110πm = 110m×(22/7)=(2420/7)m = 345.71 m [2min 45 sec =165 seconds]
Displacement = 2r = 2×10 = 20 m
Explanation:
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