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Find the magnitude of two vectors vec ...

Find the magnitude of two vectors ` vec a`and ` vecb`having the same magnitude and such that the angle between them is `60^@`and their scalar product is `1/2`.

Text Solution

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given`|veca|=|vecb| and theta=60^0`
=`veca-vecb=1/2`
=`|veca||vecb|costheta=1/2`
=`|veca|^2cos(60^o)=1/2`
=`|veca|^21`
=`|veca|=1
=`|vecb|=1
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