Force and Motion | Kentucky State University - Edubirdie

University:
Kentucky State University
Course:
PHY 212 | General Physics II
Academic year:

2021
Views:

109

Pages:

1
Author:

santjinlmr

70. Circular freeway entrance and exit ramps are commonly banked to handle a car moving at 13 m/s. To design a similar ramp for 26 m/s one should: A. increase radius by factor of 2 B. decrease radius by factor of 2 C. increase radius by factor of 4 D. decrease radius by factor of √ 4 E. increase radius by factor of 2 ans: C 71. At what angle should the roadway on a curve with a 50 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy (and the frictional force is zero)? A. 0 B. 16◦ C. 18◦ D. 35◦ E. 73◦ ans: B Chapter 6: FORCE AND MOTION – II 85

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