Question
When this system’s angle is zero, velocity squared cannot exceed the product of r, mu, and little g, where mu is the coefficient of friction. For 10 points each:
[10m] Name this system in which an object moves in an arc along an inclined surface.
ANSWER: banked turn [or banked curve or banked roadway; accept banking in place of “banked”; prompt on a turn; prompt on banked]
[10e] Solving a banked turn system involves equating components of this force with weight and centripetal acceleration. This force acts out from, and perpendicular to, a surface.
ANSWER: normal force [prompt on N]
[10h] The angle below which no positive velocity maintains a trajectory around a banked turn is given by this function of mu, since maximum velocity squared is proportional to sine-theta plus mu-cosine-theta. Your answer should not be signed.
ANSWER: arctangent of mu [or inverse tangent of mu]
<David Bass, Science - Physics> ~23758~ <Editor: David Bass>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 11.67 | 97% | 14% | 6% |