A particle moves along a line according ...

A particle moves along a line according to the law `s=4t^3-3t^2+2`. At what time will the acceleration be equal to 42 unit/`sec^2` ?

1 sec

2 sec

4 sec

8 sec

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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)

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