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In a court hearing, a physicist reconstructs an accident in the following way. A sports car of mass m1=1000kg collided with a parked truck of mass m2=1500kg. From the skid marks, it is estimated that the speed of the truck immediately after the collision was 21.6m/s, at an angle of 33.7 degrees with respect to the direction of the incoming sports car. The sportscar left skid marks at an angle of 60 degrees to its initial direction, but did not stop, leaving the scene of the accident badly damaged.
(a) Determine the speed of the sports car immediately after the collision.
(b) Determine the initial speed of the sports car in units of m/s and miles/hour. The accident occurred on a quiet residential street. Was the sports car speeding?
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