CBSE Class 9 Answered
9. A girl moves along a circular path of radius 14m. What is her distance and displacement when she completes: (a) Half round (b)Two rounds
Asked by tognosigno | 02 May, 2020, 11:05: AM
Expert Answer
Radius of circular path, r = 14 m
a) Half round
Distance when girl completes half round
We know,
circumference of circle = 2∏r
Thus circumference of semicircle (half circle) = ∏r
Hence,
b) Two rounds
Answered by Shiwani Sawant | 02 May, 2020, 01:20: PM
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