posted by ann .
You testify as an "expert witness" in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill. You find that the slope of the hill is theta= 12.0°, that the cars were separated by distance d = 22.5 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was v0 = 19.0 m/s.
One of the first things you need to learn about physics is how to use data to answer a question. You have provided a lot of data but have failed to ask a question.