<p>A racecar of mass 1550 kg cruises at constant speed around a circular track o

Question

<p>A racecar of mass 1550 kg cruises at constant speed around a circular track of radius 420 m, completing one lap every 45 seconds. The track is not level, but banked inward with a 20 degree slope.</p>
<p>A) What is the speed of the car?</p>
<p>B)What is the net centripetal force acting on the car?</p>
<p>C) Draw a free-body diagram of the car, viewed head on. What is the minimum coefficient of static friction needed for the car to make the turn without slipping? <em>Hint: Keep one of your corrdinate axes aligned with the net force.&#160;</em></p>

Explanation / Answer

v= (r*g*tan20)

=(420*9.81*tan20)

=38.73 m/sec

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