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When a ball is thrown upwards, its momen...

When a ball is thrown upwards, its momentum first decreases and then increases. Is conservation of linear momentum violated in this process?

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No, the momentum conservation principle is not violated. Infact, this principle cannot be applied to this case as external force due to gravity is involved.
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Knowledge Check

  • Principle of conservation of linear momentum is deduced from

    A
    Newton's 1st law
    B
    Newton's 2nd law
    C
    Newton's 3rd law
    D
    none of the above.

  • The linear momentum is conserved in

    A
    elastic collisions
    B
    inelastic collisions
    C
    Both a and B
    D
    Neither a nor b

  • The condition for validity of the principle of conservation of linear momentum is :

    A
    external force should be acting on any one body
    B
    external force should be aacting on both the bodies
    C
    no external unbalanced force should act on the system
    D
    none of these