Phys211Exam2Sample

Phys211Exam2Sample - Physics 211 Exam 2 Sample problems 1)...

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Physics 211 Exam 2 Sample problems
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1) 
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Two  rubber  bands pulling on an object cause it to accelerate with acceleration  a .  How many rubber bands are needed  to cause an object with half the mass to accelerate with acceleration 3 a ?   A) 
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B) 
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C) 
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D) 
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2) 
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A block is  at rest on  a rough  incline as  shown. How many forces are acting on the block?   A) 
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1 B) 
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C) 
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3 D) 
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4
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  3) 
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In the  figure  below  mass B is  pulling  mass A  across a  frictionles s surface.  The mass  of A is 4  kg and the mass of B is 2 kg.  How long does it take mass A to travel 0.25 meters across the table? A) 
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0.22 s   B) 
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0.39 s   C) 
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0.78 s   D) 
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0.46 s   4) 
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Two  bodies P  and Q on  frictionles horizontal surface are connected by a light cord. The mass of P is 30 kg and the mass of  Q is 22 kg.  A  horizontal force  F r  whose magnitude is 15 N is applied to Q as shown, accelerating the bodies to the  right.  What is the tension in the cord that connects bodies P and Q?   A) 
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17 N  B) 
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8.7 N C) 
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14.4 N D) 
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6.1 N 
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This note was uploaded on 01/18/2012 for the course PHY 211 taught by Professor Aaronsup during the Fall '11 term at Boise State.

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Phys211Exam2Sample - Physics 211 Exam 2 Sample problems 1)...

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