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A girl runs along a circular track of radius 5 m starting from point A. What will be the distance travelled by her and speed if she stops halfway at B in 400 s? |
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Answer» Solution :If the girl STOPS halfway through, her distance WOULD be half the circumference, which is EQUAL to `(2 XX pi x r)//2 = 3.14 xx 5 = 15.7 m` TIME = 400s `"Speed" = ("Distance travelled")/("Time taken ")=15.7//400= 0.039 m//s` |
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