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A stone projected vertically upward move...

A stone projected vertically upward moves according to the law `s=100t-16t^2`. The acceleration at `t=2` sec is

A

`-32 unit//sec^2`

B

`32 unit//sec^2`

C

`16 unit//sec^2`

D

`8 unit//sec^2`

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Verified by Experts

The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)
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