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A person throws a ball in vertical plane...

A person throws a ball in vertical plane such that velocity of ball along horizontal is `V_(x)` and along vertical is `v_(gamma)`. Coefficinet of friction between man and gound is `mu`. Necessary condition so that man always remains at rest will be (Note: the process is done in time `Deltat_0)`

A

`V_(x)gtmuV_(y)`

B

`V_(x)lemuV_(y)`

C

`V_(y)lemuV_(x)`

D

None of these

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The correct Answer is:
B
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A person throws a ball in vertical plane such that velocity of ball along horizontal is V_(x) and along vertical is v_(gamma) . Coefficinet of friction between man and gound is mu . Necessary condition so that man always remains at rest will be (Note: the process is done in time Deltatto0)

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