If i increase the momentum of a system by 10% what would be its change in %of kinetic energy

please give explanation
thank u

kinetic energy=1/2mv^2
u increase system momentum by increasing velocity{u do that by doing work on it}
so assuming no mass change
to increase momentum by 10%, u increase velocity by 10%

new ke= 1/2 m(1.1v)^2
=1/2m*(1.21v^2)
=1.21(1/2mv^2)

thus Kinetic energy increases 21%

http://en.wikipedia.org/wiki/Thermodynamic_system#Open_system
well..was assuming a close system, it is usually safe to assume a close system in such problems.
if u do not assume a close system, mass may increase or decrease, so with velocity, as long as mv increases by 10%, does not give solution

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