Yu need to make a sharp turn on a flat road with a radius ofcurvature of 15 m. I

Question

Yu need to make a sharp turn on a flat road with a radius ofcurvature of 15 m. If you double your speed for the turn, whichstatement is true? a. The static force of friction needs to be four times aslarge. b. The static force of friction needs to be twice aslarge. c. The static force of friction is the same for both speedssince the radius of curvature is the same. d. The static force of friction is zero since the car isrolling. Yu need to make a sharp turn on a flat road with a radius ofcurvature of 15 m. If you double your speed for the turn, whichstatement is true? a. The static force of friction needs to be four times aslarge. b. The static force of friction needs to be twice aslarge. c. The static force of friction is the same for both speedssince the radius of curvature is the same. d. The static force of friction is zero since the car isrolling. b. The static force of friction needs to be twice aslarge. c. The static force of friction is the same for both speedssince the radius of curvature is the same. d. The static force of friction is zero since the car isrolling.

Explanation / Answer

it is not mentioned that the road is bancked so the frictionalforce stops the car from slipping
initially centripetal force=static frictionalforce=m*(v2)/r now centripetal force=static frictionalforce=m*(4*v2)/r so the answer is--- a.the static frictional force needs to befour times as large.

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