Physics-6A-Final

Physics-6A-Final - Name ID Signature Physics 6A Spring 2005...

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Name : ; Signature : ID # : Physics 6A – Spring 2005 – Huang Final Exam 1. This is a closed book and closed note exam. Students are allowed to bring one page (could be double-sided) note of their own hand- writting. 2. This is three hour exam. No student will be admitted 30 minutes after the start of the exam. 3. This exam counts 50 points towards the final grade. 1 2 3 4 5 6 7 8 9 10 TOTAL
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Problem 1 (5 points) A tennis ball rolls off the edge of a tabletop 0.75 m above the floor horizontally and strikes the floor at a point 1.50 m horizontally from the edge of the table. Ignore air resistance, a) Find the time of flight. b) Find the magnitude of the initial velocity. c) Find the magnitude and direction of the velocity of the ball just before it strikes the floor.
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Problem 2 (5 points) Two objects are connected by a light string that passes over a frictionless pulley as shown in Figure. The incline is frictionless, and m 1 =2.0 kg, m 2 =5.0 kg and θ =50 0 . Find a) the acceleration of the objects, b) the tension in the string, and c) the speed of each of the objects 2.00 s after they are released simultaneously from rest.
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Problem 3 (5 points) Consider a conical pendulum with a mass 50.0 kg bob on a 10.0 m
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