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A particle moves so that its position ve...

A particle moves so that its position vectors varies with time as `vecr=Acosomegathati+Asinomegathatj`. Find the
(a)Initial velocity of the particle
(b)angle between the position vector and velocity of the particle atony time.
©Speed at any instant .

Text Solution

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(a)A `omegahatj`, (b)`vecvbotvecr,(c )Aomega`
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