Recent content by quatrarot

Okay: Then I get something like 2x*dx/dt = 190 mph where does 150mph fit into this and is dx/dt the speed of the car?

A police is flying at 150 mph at a constant altitude of .5 miles above a straight rode. The pilot uses radar to determine that an oncoming car is at a distance of exactly one mile from the helicopter, and that this distance is decreasing at 190 mph. Determine the speed of the car. This is a...