Question

Kinetic energy of a body becomes double if *

(i) its mass and velocity are doubled

(ii) its mass remains the same but its velocity is doubled

(iii)its mass remains the same but its velocity is reduced to half

(iv)its mass is doubled but its velocity remains the same


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Answer 1

Answer:

iv is the correct option

Explanation:

KE = 1/2(2m)v^2

KE = 2 (1/2mv^2)

KE =2 KE

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