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A sphere of weight W=100 N is kept stationary on a rough inclined plane by a horizontal string AB as shown in the figure.Find-

a.tension in the string .

b.force of friction on the sphere and

c.normal reaction on the sphere by the plane

#Physics #Mechanics

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Abhishek Priyam ·2009-07-06 11:00:42

its easy...

for (a) balance torque about point of contact.(torque due to mg and T.. T will be known from this)

for (b and c) now T is known. only unknown left are normal reaction from incline and the friction.
balance forces on sphere in two axes. (2 variable 2 equation)..
both (b) and (c) will be known.

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