page id: 129 Videosolution BF 13-003 Euler >  ME 203 Euler >  Restricted

BF 13-003 vs


Point Kinematics

Free-fall


The student drops a ball at time t = 0. The ball's position relative to the floor is given as a function of time by s = (-16.1 t2 + 4) ft.
  1. How long does it take the ball to fall to the floor?
  2. What is the ball's velocity just before it hits the floor?
  3. Determine the ball's acceleration.