Acar moving in a straight line starts at x = 0 at t = 0 . it passes the point x = 30.0 m with a speed of 10.0 m/s at t = 3.00 s . it passes the point x = 375 m with a speed of 50.0 m/s at t = 20.0 s . find the average velocity between t = 3.00 s and t = 20.0 s . express your answer with the appropriate units.
find the average acceleration between t = 3.00 s and t = 20.0 s .
express your answer with the appropriate units.