Question

what work is to be done to increase the velocity of a car from 30 kmh-1 to 60 kmh-1 if mass of the car is 1500 kg

Answer 1

Kinetic energy=
$1 \div 2 \times1500( {60 }^{2} - {30}^{2} )$
750*90*30=2025 Kilojoules

Answer 2

plzz refer the attachment

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