Dolly vyas Branch EC 8 TH SEM Adina institute of science &technology. PRESENTED BY. Subject :- engineering mechanics.
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The smooth circular cylinders of figure each of weight w = 100 N and radius r = 6 cm are connected by string AB of length l = 16cm and upon a horizontal plane, supporting a third cylinder of weight Q3= 200 N and radius r = 6cm above them. Find the tension S in the string AB and the pressure produced by the floor at points of contact D and E ?Question
Now we find the value of Ra and Rb
For finding the value we make a free body diagram of cylinder Q3
By that we get the value of the angle between Rb and known weight
And the angle between Ra and Rb
Ra and Rb = 1.55 N
This Ra and Rb are the tension S = 1.55 N
Since both the smooth sylinder are in the point contect of the surface so the value of the pressure at the point contect will be
Ra + Rb = weights of all cylinder
Since Ra and Rb are equal so
Ra = 200 paskal
Here Ra be the pressure