# A boy takes 5 round of of a circular park of radius 7m. Find distance and displacement.

2
by Riya9212

2015-04-02T12:43:34+05:30

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the displacement is 0 because he starts and ends at the same point.
perimeter of a park (circle) = 2πr
= 2×22/7×7
= 44m
one round = 44m
7 rounds = 44×7 = 308m

2015-04-02T12:50:44+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Distance = 7 * circumference of circle
= 7 * 2πr
= 7 * 2 * 22/7 * 7
=308 m

Displacement is the shortest distance from the initial point to final point.
Since the initial and final points are same,displacement is zero.
i mean calculation wrong so the ans is wrong
once see n edit