While driving down Museum Road, you see Mr. Parks crossing the road. Seeing your opportunity, yo

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While driving down Museum Road, you see Mr. Parks crossing the road. Seeing your opportunity, yo

While driving down Museum Road, you see Mr. Parks crossing the road. Seeing your opportunity, you accelerate your car (1200 kg) from 9.0 m/s (about 20 miles/hour) to 15 m/s. Unfortunately, you do not see another car (mass of 1500 kg) pull out in front of you at 10 m/s. The cars are traveling perpendicular when they collide and they stick together after the collision. What is the speed of the cars immediately after they collide?

(1) 8.7 m/s (2) 12 m/s (3) 9,4 m/s (4) 13 m/s (5) None of these.

PHY2053, Summer 2012 Exam

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