Range of a bullet fired at $45^o$ to horizontal is $980m$. If the bullet is fired at same  angle from a car travelling horizontally at $18\, km/hr$ towards target then range will be  increased by :-

  • A

    $100\, \sqrt 2 \,m$

  • B

    $100\, \sqrt 7 \,m$

  • C

    $50\, \sqrt 2 \,m$

  • D

    $50\, \sqrt 7 \,m$

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