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The position vector of 1kg object is r → = ( 3 i ^ − j ^ ) m and its velocity v → = ( 3 j ^ + k ^ ) m s − 1 . The magnitude of is angular momentum is x   N m  where x is________.

0 5 Views | Posted 2 weeks ago
Asked by Shiksha User

  • 1 Answer

  • R

    Answered by

    Raj Pandey | Contributor-Level 9

    2 weeks ago

    L ? = r ? * m v ?

    = ( 3 i ^ ? j ^ ) * ( 3 j ^ + k ^ )

    = 9 k ^ + 3 ( ? j ^ ) ? i ^

    = ? i ^ ? 3 j ^ + 9 k ^

    | L ? | = 1 + 9 + 8 1 = 9 1

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