Question

The percentage change in the kinetic energy of a particle when its momentum increases by 20 % and mass increase by 20% is
(A) Zero
(B) 20%
(C) 27%
(D) 44%​

Answer 1

Explanation:

we know

KE = p² / 2m

so using

∆ KE=2∆P-∆M

∆KE = 20%

Answer 2

Answer:

(B) 20%

Explanation:

KE = p² / 2m  

∆ KE=2∆P-∆M

∆KE = 20%

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