A car moving at a constant speed and making a turn on a horizontal, flat road th

Question

A car moving at a constant speed and making a turn on a horizontal, flat road that is curved so that its radius is constant has a centripetal acceleration caused by friction does not need friction because it is just like a banked curve can go faster if the radius is made smaller can go faster if the car is more massive Find the magnitude of the acceleration for the situation in #5 if the radius of the curve is 60 meters, the mass of the car is 1000Kg, and the speed of the car is 30m/s (about 60 mph). About how many "g's" is this?

Explanation / Answer

5) Correct option: a) has a centripetal acceleration caused by friction 6) Acceleration, a = v^2 / r = 30^2 / 60 = 15 m/s^2 = ( 15 / 9.8 ) g = 1.53 g

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