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Calculate the amount of work required to stop a car of 1000 kg moving with a speed of 72 km/h 2 |
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Answer» Answer: Here , Initial Velocity = U = 72 km/h = 20m/s Final Velocity = V = 0 m/s Mass of the body = m = 1000 kg Now using the concept of Work Energy Theorem : Work Done = ½mv²-½mu² = 0-½×1000×20 = 10000 N The total work done is 10000 N. |
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