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What is the work needed to be done to increase the velocity of car from 30km / h to 60km / h if the mass of car 1500 |
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Answer» 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 Work done is 156.25 kJ |
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