PHYS221 - Lab 2 One Dimensional Motion (Continued on next page...) Pre-Lab Exercises (continued) 3 3) In the velocity formula, U(t) = EI+ 2 (position in meters, time in seconds), what is the value of the acceleration? 4) In the position formula, x(t) =612 -12t+1 (position in meters, time in seconds), what is the value of the velocity at time /=2 5) Two distances are measured for the same object. The firstis 16.9+0.4cm; and the second is 15.2+0.6cm, are they in agreement? Show your work. (See analysis section 3.b show your work.) Lab Section: Hand this in the first five minutes of the lab period. The grade for these exercises will be included in your lab grade this week. 1) What is the formula that describes how the acceleration of an object down an inclined plane? Make sure that your answer depends on the angle the incline is elevated (with respect to the horizontal). Note, after you learn about forces and inclined planes, you should try deriving this yourself. 2) If the curve in this graph represents a position vs. time graph, draw the corresponding velocity vs. time graph in the space provided. Note that the two graphs share the same time axis