Question

Unsure how to get past on this one

12. On a long straight road car A has a speed of 65.0 mph and Car B has a speed of 45.0 mph. At time t 0, car A is 1250 feet behind car B. (a) Calculate the minimum magnitude of Car A's deceleration that will prevent a collision if Ca B maintains its speed. (b) If Car A were to decelerate at twice the rate calculated in part (a), calculate the distance of closest approach for Car A with respect to Car B.

Answer 1

Please find attached the solution.

You will have to see the motion of A while sitting on car B.

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