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A stone, vertically thrown upward is mov...

A stone, vertically thrown upward is moving in a line. Its equation of motion is `s=294t-49t^(2)`, then the maximum height that the stone reaches is

A

1200

B

441

C

120

D

424

Text Solution

Verified by Experts

The correct Answer is:
B
`s=294t-49t^(2)`
`:.(ds)/(dt)-294-98t`
But in maximum position `(ds)/(dt)=0`
`:. 294-98t=0impliest=3`
`:.s=294(3)-49(9)=882-441=441`
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