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A stone is thrown up vertically. The hei...

A stone is thrown up vertically. The height it reaches at time t seconds is given by `x=80t-16t^(2)`. The stone reaches the maximum height in time t seconds is given by

A

2

B

`2.5`

C

3

D

`3.5`

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The correct Answer is:
B, C
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FULL MARKS-APPLICATIONS OF DIFFERENTIAL CALCULUS -EXERCISE - 7.10
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