A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 20°. For a speed of 34 m/s, at what value of the distance d should a driver locate his car if he wishes to stay on a circular path without depending on friction?
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Tags: cars, circles, circular path, Drawing, friction, racetrack, shape
Sounds like a Webassign problem!
Okay, well…in order to solve, you have to rearrange your centrepetal force equation and account for the angle presented.
v^2 / g sinθ should yield your r value.
Let’s see…
34^2 / (9.81 sin 20) = 344.5
344.5 meters is your answer.
it’s all about friction goob