Question

solve with full explanation....
plzz guyz!!! ​

Answer 1

consider a body of mass m

let initial velocity of body be v

and final velocity is given 3v

initial kinetic energy = 1/2 ×m ×v ^2

final kinetic energy = 1/2 × m × (3v)^2

=9/2× m× v^2

if velocity becomes three times the kinetic energy becomes 9 times

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