A car accelerated from rest to a speed of 10 m/s. Let the energy spent be E. If we accelerate the car from 10 m/s to 20 m/s, the energy spent will be

Q: A car accelerated from rest to a speed of 10 m/s. Let the energy spent be E. If we accelerate the car from 10 m/s to 20 m/s, the energy spent will be

(a) E

(b) 2 E

(c) 3 E

(d) 4 E

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Ans: (c)