Question

Your friend has just been in a traffic accident and is trying to negotiate with the insurancecompany of the other driver to pay for fixing the car. You are asked to prove that itwas the other driver’s fault. At the scene of the crash you determine what happened.Your friend was traveling North and entered an intersection with no stop sign. At thecenter of the intersection, the car was struck by the other car that was traveling East.The speed limit on both roads entering the intersection is 50 mph. From the visible skidmarks, the cars skidded locked together for 56 feet at an angle of 30◦north of east beforestopping. At the library you determine that the weight of your friend’s car was 2600lbs. and that of the other car was 2200 lbs., where you included the driver’s weight ineach case. The coefficient of kinetic friction for a rubber tire skidding on dry pavementis 0.80. It is not enough to prove that the other driver was speeding; you must also showthat your friend was under the speed limit.

Answer 1

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