Professional Application Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force? (b) Find the final velocity of the bumper car if its initial velocity was 2.80 m/s and the car plus driver have a mass of 200 kg. You may neglect friction between the car and floor.

Video Module 3 Notes Until now, we have been dealing with motion in mostly one dimension, and some in two dimensions. 3.1 Motion in two dimensions 3.1.1 Constant velocity in 2 dimensions (1:41) • In two dimensions velocity is broken into two components which can be expressed using the same equation for constant velocity in one dimension • The velocity vector is represented by: v = vx^ + v y^ (1) • Where motion in the x and y dimensions can be written respectively as: x(t) = x0+ v x and y(t) = y +0v t y (2) • see 3:18 in video 3.1 for the bug example 3.1.2 Constant Acceleration (6:00 3.1) n two dimensions accelerati