Physics2AExam2W11

Physics2AExam2W11 - M 2M 2M 3 3. A 70 kg person goes on a...

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0 DO NOT TURN THIS PAGE!!!!! Name: _________________________________ Physics 2A Winter 2011 Exam 2 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. Consider the Atwood’s Machine system shown below. Assume massless, frictionless pulley. (10 pts) 3.0 kg 5.0 kg m 1 m 2 a) Calculate the acceleration of the blocks. Which direction does the 3.0 kg move? b) Calculate the tension in the string.
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2 2. For the system shown below, when the blocks are released from rest, they acquire an acceleration of 0.70 m/s 2 . Calculate the coefficient of kinetic friction between the block and the table-top. (10 pts)
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Unformatted text preview: M 2M 2M 3 3. A 70 kg person goes on a Ferris Wheel ride in a vertical circle of radius 10.0 m and moving at a constant speed of 7.0 m/s. (15 pts) a) Calculate the period of rotation. b) Calculate the magnitude and direction of the normal force exerted on the person by the seat at the highest and lowest point on the ride. c) Calculate the minimum speed of the ride so that a person not wearing his seatbelt is not thrown off the ride. 4 4. Define the following terms conceptually without any mathematical definitions: (2 pts each) a) Mass b) Newtons First Law c) Free-Body Diagram d) Centripetal Acceleration e) Equilibrium -...
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This note was uploaded on 09/02/2011 for the course PHYS 2A taught by Professor Luna during the Fall '09 term at DeAnza College.

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Physics2AExam2W11 - M 2M 2M 3 3. A 70 kg person goes on a...

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