doubt(from hc verma)

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please please clarify this

refer hc verma vol.1

page no. 91, worked example-1, N=mgcosx &

page no. 107, worked example-2, Ncosx=mg

which one is correct??? in general if a block(moving or stationary) is kept on a wedge, will the normal force be greater than weight or less than weight???

also explain in the case of a block tied to a string. will the tension be greater/lesser than weight???

#Physics #General Physics

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Mani Pal Singh ·2009-02-24 18:34:29

arey bhai study the prob carefully
BOTH R CORRECT

in Pg91 the forces r balanced along the inclined and perpendicular to the incline
N=MgCosÎ¸ came by balancing the forces in the direction perpendicular to the incline plane

In pg 107 Q2 the actual diagram is not this
although it gives u the rough idea of the picture
the particle is performing circular motion forces r balanced along the horizontal and the vertical
analyze a car moving on a circular track and a centripetal force is acting on it
or in other words u can say that the normal will vary in this case

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doubt(from hc verma)

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