Towns A and B in the figure below are 80.0 km apart. A couple arranges to drive from town A and meet a couple driving from town B at the lake, L. The two couples leave simultaneously and drive for 2.15 h in the directions shown. Car 1 (leaving from Town A) has a speed of 99.0 km/h. If the cars arrive simultaneously at the lake, what is the speed (in km/h) of car 2 (leaving from Town B)?b)What If? If the couple departing from town B are delayed by a flat tire, how much later (in hours) can they leave town B after the first couple leaves town A and still reach the lake at the same time as the couple from town A? Assume that the speed limit on the road taken by the couple from town B is 88.5 km/h (55 mph) and that the couple obeys the speed limit.

Question

Towns A and B in the figure below are 80.0 km apart. A couple arranges to drive from town A and meet a couple driving from town B at the lake, L. The two couples leave simultaneously and drive for 2.15 h in the directions shown. Car 1 (leaving from Town A) has a speed of 99.0 km/h. If the cars arrive simultaneously at the lake, what is the speed (in km/h) of car 2 (leaving from Town B)?

b)What If? If the couple departing from town B are delayed by a flat tire, how much later (in hours) can they leave town B after the first couple leaves town A and still reach the lake at the same time as the couple from town A? Assume that the speed limit on the road taken by the couple from town B is 88.5 km/h (55 mph) and that the couple obeys the speed limit.

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