The velocity of a car increase from 54 km per hour to 72 km per hour how much is work done if the mass of the car is 1500 kg
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72 kmph = 20 m/s
54 kmph = 15 m/s
Work = Change in Kinetic energy
= 0.5m (v² - u²)
= 0.5 × 1500 kg × (20² - 15²)
= 131250 J
= 131.25 kJ
Work done by car is 131.25 kJ
54 kmph = 15 m/s
Work = Change in Kinetic energy
= 0.5m (v² - u²)
= 0.5 × 1500 kg × (20² - 15²)
= 131250 J
= 131.25 kJ
Work done by car is 131.25 kJ
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