2. What is the man's average velocity, when he walks a distance of 700 meters in 10 minutes? (Ans: 70m./min.)

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A: Given data,     Total time taken =  t      Total distance =  d        Required,       Average speed

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.