You're designing a highway so that the maximum centripetal acceleration on a curve is no more than 1.7 m/s2. What is the minimum curvature radius to accommodate a 52-km/h maximum speed? Give your answer in meters I know the formula involves a= v^2/r and we get r by itself; and then, we are to find minimum curvature radius.  My question has to do with a conversion of 52 km to meters, and yes, km=1000 m.  Can you help me to conceptualize (52 km/h)^2 to (14.4 m/s)^2 better?

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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.