A-boy-ran-around-a-circular-part-of-radius-14m-in-15s-Calculate-the-average-velocity-and-the-average-speed-

Question Number 22112 by tawa tawa last updated on 11/Oct/17

A boy ran around a circular part of radius 14 m in 15 s . Calculate the

average velocity and the average speed .

Answered by $@ty@m last updated on 11/Oct/17

A v e r a g e V e r l o c i t y = \frac{D i s p l a c e m e n t}{t i m e}

= \frac{0}{15} = 0

A v e r a g e S p e e d = \frac{D i s t a n c e}{t i m e}

= \frac{2 π . 14}{15}

= \frac{2 \times 22 \times 2}{15}

= \frac{88}{15}

= 5.87 m / s

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