University physics 1

Motion in Two Dimension Pre-lab exercises: Do the pre-lab problems below before you come to lab. Make certain that you submit the pre-lab exercises to Blackboard before coming to lab. You will receive no credit for them if your work is submitted late. Be prepared to discuss these problems at the start of the lab. Free fall 1 . From your reading, write down formulas for position and velocity of a falling object as a function of time. Use y for the vertical position coordinate and Vy for the vertical velocity. V= Vit gt 9x =0 ay = - 9. 8 m/s d ) displacement = vittagta "f = Vi + 2 gd 2. On the left set of axes below, sketch a graph of the position of a falling object vs. time. The ball is initially at rest and y = yo. Choose the vertical axis as positive upward. + velocity position time time 3. On the right set of axes above, sketch a graph of the velocity of a falling object as a function of time. 4 . Is the acceleration zero? Constant? Is it some function of time or position