Q22 / 126 · NTA Abhyas (NEET) 2020 · Physics · Motion In Two Dimensions

A large number of bullets are fired in all directions with the same speed v. What is the maximum area on the ground on which these bullets will spread?

  • A
    πv2g
  • Correct answer
    B
    πv4g2
  • C
    π2v4g2
  • D
    π2v2g2

Solution

The area in which bullet will spread =πr2

For maximum range, Rmax=v2g    [when θ=45°]

∴ Maximum area =πRmax2=πv2g2=πv4g2

Hence, the correct answer is option: 'B'.

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