You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill (see the figure). You find that the slope of the hill is = 11.0°, that the cars were separated by distance d = 24.0 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was vo 17.0 m/s. With what speed did car A hit car B if the coefficient of kinetic friction was (a) 0.580 (dry road surface) and (b) 0.100 (road surface covered with wet leaves)? (a) Number (b) Number i ! Units m/s ! Units m/s
You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill (see the figure). You find that the slope of the hill is = 11.0°, that the cars were separated by distance d = 24.0 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was vo 17.0 m/s. With what speed did car A hit car B if the coefficient of kinetic friction was (a) 0.580 (dry road surface) and (b) 0.100 (road surface covered with wet leaves)? (a) Number (b) Number i ! Units m/s ! Units m/s
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Vectors
Section: Chapter Questions
Problem 7P: A force F1 of magnitude 6.00 units acts on an object at the origin in a direction = 30.0 above the...
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