Question

A car traveling on a flat circular track accelerates evenly from rest with a tangential acceleration of 1.9m / s². The car makes a quarter turn before it leaves the runway. Therefore the friction force has a tangential component so as to make the carriage speed vary and a radial component so that it can make the curve. From these data, we can conclude that the coefficient of static friction between the car and the track is:

Choose one:

0,639

0,384

0,128

0,192

0,511

Answer 1