Engineering Board Exam Reviewer · Physics · hard
At what angle should a curve of radius 100 m be banked so that a car traveling at 25 m/s needs no friction? (g = 9.81 m/s2)
- 1.46°
- 32.50°
- 39.58°
- 57.50°
Answer
B. 32.50°
Solution
= v2/(rg) = 625/981 = 0.6371 = 32.50°.
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