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A particle of mass m is projected from t...

A particle of mass `m` is projected from the ground with an initial speed `u` at an angle `alpha`. Find the magnitude of its angular momentum at the highest point of its trajector about the point of projection.

Text Solution

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`L_(0)=mvr_(bot)`
`=m(ucosalpha)((u^(2)sin^(2)alpha)/(2g))`
`=(mu^(3)cosalphasin^(2)alpha)/(2g)`
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