Two cars A and B, each having a mass of 1.6 Mg, collide on the icy pavement of an intersection. The direction of motion of each car after collision is measured from snow tracks as shown. If the driver in car A states that he was going 50 km/h just before collision and that after collision he applied the brakes, so that his car skidded 4 m before stopping, determine the approximate speed of car B just before collision. Assume that the coefficient of kinetic friction between the car wheels and the pavement is μ_k = 0.15. Note: The line of impact has not been defined; furthermore, this information is not needed for solution.

Transcribed Image Text:

A B 0 4 m 40⁰ 30° A B X