The angular speed of an automobile engine is increased at a constant rate from \( 1200 \mathrm{r...

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The angular speed of an automobile engine is increased at a constant rate from \( 1200 \mathrm{rev} / \mathrm{min} \) to \( 3200 \mathrm{rev} / \mathrm{min} \) in \( 12 \mathrm{~s} \)
How many revolutions does the engine make during this \( 12 \mathrm{~s} \) interval'
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