3) You are an accident investigator arriving at a crash site. Before the collision, car 1...

 

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3) You are an accident investigator arriving at a crash site. Before the collision, car 1 with mass m = 1500 kg was traveling east (x-direction) and car 2 with mass m = 2500 kg was traveling north (y-direction). After the collision, the two cars skid to a halt, leaving skid marks of length = 10.0 m and 1 = 20.0 m and angles of 01 75.0 and 02 15.0 north of east for ears 1 and 2, respectively. You can ignored the effect of friction with the road during the actual collision. For partial credit each part, write the expressions in terms of the results from the preceding parts before putting them into the calculator. car 1 0 c) How much energy was lost in the collision? (3 pts) car 2 0 ) V a) What were the speeds vf and v2f of cars 1 and 2 immediately after the collision? Assume the coefficient of friction of the rubber tires on the concrete is p = 0.800. (5 pts) b) What were the speeds u; and U2, of cars 1 and 2 immediately before the collision? (5 pts). d) If the cars were in contact for 0.0300s, what is the magnitude and direction of the average force on car 1? (5 pts) e) Why is it reasonable to ignore the effect of friction with the road during the actual collision? (2 pts) 3) You are an accident investigator arriving at a crash site. Before the collision, car 1 with mass m = 1500 kg was traveling east (x-direction) and car 2 with mass m = 2500 kg was traveling north (y-direction). After the collision, the two cars skid to a halt, leaving skid marks of length = 10.0 m and 1 = 20.0 m and angles of 01 75.0 and 02 15.0 north of east for ears 1 and 2, respectively. You can ignored the effect of friction with the road during the actual collision. For partial credit each part, write the expressions in terms of the results from the preceding parts before putting them into the calculator. car 1 0 c) How much energy was lost in the collision? (3 pts) car 2 0 ) V a) What were the speeds vf and v2f of cars 1 and 2 immediately after the collision? Assume the coefficient of friction of the rubber tires on the concrete is p = 0.800. (5 pts) b) What were the speeds u; and U2, of cars 1 and 2 immediately before the collision? (5 pts). d) If the cars were in contact for 0.0300s, what is the magnitude and direction of the average force on car 1? (5 pts) e) Why is it reasonable to ignore the effect of friction with the road during the actual collision? (2 pts)