Water coming out of a horizontal tube at a speed ? strikes normally a vertically wall close to the mouth of the tube and falls down vertically after impact. When the speed of water is increased to $2v$ .

  • A

    the thrust exerted by the water on the wall will be doubled

  • B

    the thrust exerted by the water on the wall will be four times

  • C

    the energy lost per second by water striking the wall be increased eight times.

  • D

    $B$ and $C$ both

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  • [IIT 2012]