If the change in kinetic energy of a car is 1200 J in 2 minutes then the power generated by its engine is:

100 W

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10 W

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200 W

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20 W

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Solution

The correct option is B
10 W

The change in kinetic energy is equal to the work done which is equal to 1200 J.

Power is defined as the work done per unit time.

i.e. $\frac{1200 J}{120 s} = 10 W$

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If the change in kinetic energy of a car is 1200 J in 2 minutes then the power generated by its engine is:

The correct option is B 10 W The change in kinetic energy is equal to the work done which is equal to 1200 J. Power is defined as the work done per unit time. i.e. 1200 J120 s=10 W

The correct option is B
10 W

The change in kinetic energy is equal to the work done which is equal to 1200 J.

Power is defined as the work done per unit time.

i.e. $\frac{1200 J}{120 s} = 10 W$