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Mechanics

Scorching goIITian

Joined:	3 May 2008
Post:	288

7 Oct 2009 01:11:40 IST

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346

ans plzz.....

Physics , Mechanics , 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

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saurabh

Cool goIITian

Joined: 4 Aug 2009

Posts: 43

7 Oct 2009 08:33:07 IST

Like 1 people liked this

i think ans is (c)

now resolve the components of ma(pseudo force) & mg

which will give u these componenet

ma cosθ & ma sinθ (componenets of ma)

mg sinθ & mg cosθ (components of mg)

now at position max. deflection

mg sinθ - macosθ =ma1 {a1(acc. of bob)}

therefore a1=g sinθ - a cosθ

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