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A rod AB of weight w(1) is placed over a...

A rod `AB` of weight `w_(1)` is placed over a sphere of weight `w_(2)` shown in figure.Ground is rought and there is no friction between rod and sphere and sphere and wall. Draw free body diagrame of sphere and rod separalety.

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The correct Answer is:
A

`N_(1) =` normal reation between sphere and wall,
`N_(2) =` normal reation between sphere and ground
`N_(3) =` normal reation between sphere and rod and
`N_(4) =` normal reation between rod and ground
`f =` force of friction between rod and ground
No friction will act between sphere and ground because horizontal component of normal reaction from rod (on sphere) will be balanced by the horizontal normal reation from the wall.
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