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You are called to the site of a collision between a small car and a half ton truck on a lonely country road. You
You are called to the site of a collision between a small car and a half ton truck on a lonely country road. You are given the following information: a) On clean dry pavement at a temperature of 20 C, the coefficient of kinetic friction is 0.600 on locked wheels. b) The truck has left a skid mark that is 25.7 m long c) The car has left a skid mark that is 20.3 m long d) The estimated mass of the truck and contents was 1250 kg e) The estimated mass of the car and contents was 750 kg f) The truck's skid mark is due North g) The car's skid mark is due East h) The debris travelled 10.6 m 18.4 degrees E of N i) The collisions appear to have been completely inelastic j) The speed limit was 90 km/hr k) Miraculously no one was seriously hurt From this data can you work out the speed of the two vehicles prior to breaking (i.e. before the skid marks)? Write it all in a word processing document showing what you did, the assumptions you made, and the conclusions you came to.
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