Physics50Exam1W11

Physics50Exam1W11 - If at t = 0s, the velocity was +10 m/s,...

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0 DO NOT TURN THIS PAGE!!!!! Name: _________________________________ Physics 50 Winter 2011 Exam 1 MAKE SURE TO SHOW ALL WORK IN COMPLETE DETAIL. NO CREDIT WILL BE GIVEN IF NO WORK IS SHOWN. EXPRESS ALL ANSWERS IN SI UNITS.
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1 1. An unmarked police car traveling at a constant speed of 95 km/h is passed by a speeder traveling at 140 km/h. Precisely, 1.00 s after the speeder passes, the policeman begins to follow with an acceleration of 3.0 m/s 2 . (15 pts) a) Calculate the time for police car to catch speeder. b) Calculate the distance traveled and velocity of police car when it catches speeder.
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2 2. A particle moves with an acceleration as given by the graph below.
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Unformatted text preview: If at t = 0s, the velocity was +10 m/s, (10 pts) a) Calculate the velocity at t = 40 s. b) Calculate the velocity at t = 80 s. Use the graph below to solve the problem. 3 3. You shoot an arrow into the air. Four seconds later (4.0 s) the arrow has gone straight upward to a height of 55.0 m above the launch point. (15 pts) a) Calculate the initial speed of the arrow. b) Calculate the maximum height of arrow. c) Calculate the time to reach a point 30.0 m above the launch point. d) Draw the graph of y vs. t and v vs. t for the motion of the arrow....
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Physics50Exam1W11 - If at t = 0s, the velocity was +10 m/s,...

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