What is the work done to increase the velocity of a car from?
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Work = Change in kinetic energy
Work = Change in kinetic energy = 0.5 m (v² - u²)
Work = Change in kinetic energy = 0.5 m (v² - u²)= 0.5 × 1500 kg × [(60 × 5/18 m/s)² - (30 × 5/18 m/s)²]
Work = Change in kinetic energy = 0.5 m (v² - u²)= 0.5 × 1500 kg × [(60 × 5/18 m/s)² - (30 × 5/18 m/s)²]= 156250 joules
Work = Change in kinetic energy = 0.5 m (v² - u²)= 0.5 × 1500 kg × [(60 × 5/18 m/s)² - (30 × 5/18 m/s)²]= 156250 joules= 156.25 kJ
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