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Unformatted text preview: 7########,################j##9###### ###########################2####2####4####4####5&####54#<##5####5####5#### 5# ##5####5####5#P##5#x##5p####6r# ##6####9##*##9A#H##4#<######9#####6#m##9#####9#####9#B##9#####9#####9#####9## ###9#####9#####Physics 210/407Autumn 1991Quiz #3#This is an openbook quiz. You may use your lab notebook, class notes, homework assignments and the Kinematics module, as well as a calculator. Remember that this is a writing course. Maximum credit will be given to answers that are explained clearly.1. Two balls start from rest and roll down sloping sections of track (not necessarily inclined with the same slope) and onto level sections where they have uniform motion. Time intervals and track lengths are measured and shown in the following diagram. #(These tracks have not been drawn to scale.) According to the information given, which ball has the greater acceleration on its sloping section? Explain your reasoning. Note: Do not use any equations that have not been developed in Section I of the Kinematics Module. 2. A Sketch the x vs t graph that corresponds to the following v vs t graph. Label your graph appropriately, indicating the times tA through tE on your graph. Assume that the ball starts its motion at position x=0. ## B. Design a set of tracks that could produce this motion. Label the tracks appropriately and indicate the starting position and velocity of the ball. 3. A ball rolls along sloping tracks, as shown below. It starts at position x = 300 cm and rolls to the right with an initial velocity of 60 cm/s. Eventually, it returns to the origin at x = 0. Sketch graphs of position, velocity and acceleration vs. time on the axes provided. Label the various points on your graph by using the lettered points underneath the track (A, B, C, ...).# # ## 4. The graph below shows the volume of water in a railroad car plotted versus time for a trip across Forwichistan. The car is an open hopper car. When rain falls in it, the car fills with water. The car loses water through small leaks and by evaporation.#A. List all of the lettered points, if any, at which each of the following is true. Explain your reasoning. i. the volume is neither increasing nor decreasing ii. the volume is maximum iii. the rate of change of the volume is neither increasing nor decreasing iv. the rate of change of the volume is maximum v. the rate of change of the volume is 0 vi. the volume is increasing and the rate of change of the volume is decreasing vii. the volume is decreasing and the rate of change of the volume is decreasing viii. the volume is increasing more and more quickly ix. the volume is decreasing more and more slowly x. the volume is decreasing the fastestB. Sketch a graph of the rate of change of the volume vs time. Name Tuesday, November 12, 1991 #v######{#######i####m#########i##]#h### # # # # # ### #h# ###1# #q###{ 8#####@######@# #########!#######################8#####@######@# #########!...
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 Fall '01
 GregoryFrancis

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