A particle is moving in a circle or radius r centred at O with constant speed v. The change in

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A particle is moving in a circle or radius r centred at O with constant speed v. The change in velocity in moving from P to Q `(angle POQ=40^(@))` is :
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Kuch samjha nhi aaya koi logic nhi btaya bekar worst

tatvikbhandari
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Sir v 2 vector vertical ke sath 40 °kyu bana ga

shri