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30 Mar 2009 23:48:14 IST

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work done by force F when particle is taken along a semicircular path OAB O(0,0) B(4,0)

Kinematics , NewtonsLawsCirMotion , Work Power Energy collisions , Rotation , Gravitation , Simple Harmonic Motion , Fluid Mechanics , Materials Wave Sound , Super Position , units dimensions , com momentum , shm , wave sound

Find work done by F when a particle is taken along a semicircular path OAB where O is origin and the coordinates of B are (4,0)

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AViK

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Joined: 5 Sep 2008

Posts: 953

31 Mar 2009 12:11:12 IST

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Note tht work will b done only in X-direction....

'coz displacement in Y-direction is zero...

$W = _{x_1}\int^{x_2} F.dx$

$W = \int^{4} xy^2.dx$ (Base limit will b zero..)

Just integrate it & u shud get the answer...

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