If the velocity of a body increases by three

times the ate for previous change in kinetic energy

a) 1500% b) 800% c) 15% d)900% %

# If the velocity of a body increases by three

### 1 thought on “If the velocity of a body increases by three<br />times the ate for previous change in kinetic energy<br />a) 1500% b) 800% c) 15%”

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AnsWer:–v4vmKineticEnergy:–FormulaforcalculatingtheKineticenergy:–AccordingtotheQuestion:–=> ∆K.E % = [(K.Ef – K.Eᵢ)/K.Eᵢ] × 100

=> ∆K.E % = [(½m(4v)² – ½m(v)²)/½m(v)²] × 100

=> ∆K.E % = [(16v² – v²)/v²] × 100

=> ∆K.E % = (15v²/v²) × 100

=> ∆K.E % = 15 × 100

=> ∆K.E % = 1500 %Hence,theoptionA)1500%isthecorrectanswer.