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The distance form a fixed point O of a p...

The distance form a fixed point `O` of a particle pmoving in a straight line from `O` is given by `s=16+48t-t^3`. The direction of motion of the particle after `t=4` sec is

A

towards `O`

B

away from `O`

C

rest

D

none

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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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