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If momentum of a body is increased by 20%, then its kinetic energy increases by

Option 1 -

36%   

Option 2 -

40%    

Option 3 -

44%   

Option 4 -

48%

0 2 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

  • P

    Answered by

    Payal Gupta | Contributor-Level 10

    2 months ago
    Correct Option - 3


    Detailed Solution:

    ΔKKi×100=Kf−KiKi×100

    =Pf22m−Pi22mPi22m×100=Pf2−Pi2Pi2×100

    = (1.2Pi)2− (Pi)2Pi2×100=1.44Pi2−Pi2Pi2×100

    = 44%

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