PHYS 204A Midterm: PHYS 204A Chico State Exam1 Fall 06s
Document Summary
Solve the following problems in the space provided. Use the back of the page if needed. You must show your work in a logical fashion starting with the correctly applied physical principles. The equations you need are on the equation sheet. A motion sensor plots the acceleration as a function of time as shown in the graph at the bottom right. (a)estimate the value of the acceleration on the flat part of the curve between 2s and 8s. Judging from the graph, it is about 1m/s2. (b)explain the sudden negative spike in the acceleration graph. This is the large deceleration caused by hitting the wall at the end of the track. (c)graph the velocity versus time curve. Using the definition of acceleration and solving for the velocity, dv adt dt adt a " So the change in velocity is equal to the area under the acceleration time curve.
