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Asked by Usha Last Modified
Answer 
Tasneem
Kinetic energy, 
Where,
Mass of car, m = 1500 kg
Velocity of car, v = 60 km/h 
Hence, 20.8 × 104 J of work is required to stop the car.
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Mass of car, m = 1500 kg
velocity, v = 60 km/h =
Kinetic energy possessed by the car = mv²
⇒ KE =
To stop the car, we have to make the KE of car 0. So the work need to be done is 204.4 kJ.
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