a falling rubber ball bounces off the floor. the velocity just before it hits the floor is Vi= (2.7m/2) x + (5.2m/s)y. where x and y indicate the x and y components of the initial velocity voctor. just after it hits the floor, the balls velocity is Vf= (2.7m/2) x + (-5.2 m/s) y. the balls mass is 0.038 kg. the ball is in contact with the ceiling for only 1.8 x 10^-3 seconds.
a. what is the change in momentum of the ball from just before to just after it is in contact with the floor ?