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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

The energy required to accelerate a car from 10 m/s to 20 m/s is how many times the energy required to accelerate the car from rest to 10 m/s?

Answer: (D)

Solution

KE for the first condition (10→20 m/s) = ½m(20² − 10²) = ½m(300) = 150m. KE

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Question ID VK-154196