Question

Hiw is the ke of a moving car affected if the velocity is reduced 1/3rd of initial value

Answer 1

KE ∝ Velocity²

KE 1  ∝  V1²

KE 2 ∝ V2²

V2 = V1/3

KE2 ∝ (V1/3)²

KE2 ∝ (1/9)*V1²

KE2 = (1/9)KE1

KE2 = KE1 / 9

Kinetic energy reduced to 1/9th of initial

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