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Proof that ke=1/2 mv2

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Proof that ke=1/2 mv2

    • Posted by Ayush Ffcs Tgh 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Nickson S 7 years, 1 month ago

    W=fs But w.k.t f=ma and s=v2-u2/2a =>w=ma*v2-u2/2a =>w=1/2m(v2-u2) Since u=o W=1/2 mv2 Therefore ke=1/2 mv2 Hence proved.

    0Thank You

    Harshit Pandey 7 years, 1 month ago

    As s=v2-u2/2a.(from third eq. Of motion) As f=ma(from 2 law of force) W=fs W=ma×v2-u2/2a W=m×v2-u2/2 If the object starts from rest than u=0 then, E.k=1/2mv2 Hope it is help u

    1Thank You

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