MAC 2311 Midterm: MAC 2311 FAU Test4C07
Document Summary
Instructions: be systematic and show all your work clearly. Candidates are warned that, if we cannot read it then we cannot grade it, and penalties will apply: there are four problems, attempt all. All problems carry equal weight, maximum scores of individual parts are shown: closed book exam. Problem 1: two particles a and b start from rest at the origin s = 0 and move along a straight line such that aa = (6t 3) f t/s2 and ab = 12t2. 8 f t/s2, where t is in seconds. Determine (a) the distance traveled by each particle when t = 4s (15-pts) (b) the total distance between them at this instant. (10-pts) Problem 2: the baseball player a hits the baseball at va = 40 f t/s and a = 60 from the horizontal as shown in figure 1. When the ball is directly overhead of player b he begins to run under it.
