PHY 120 review sheet

Physics
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Jun 2nd, 2015

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Jun 2nd, 2015

Draw all the forces acting at O. 
28 N force acts downwards due to weight of the block. 
Tension acts at an angle 33 degrees to the horizontal  

Along x axis : 
T sin33 = 28 cos33 . 
or 
T sin33 = -0.3717 N 
negative sign show that tension is against weight;

Solving this equation for T;

 T =  0.3717/0.9999

 T = 1 N
 

Jun 2nd, 2015

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