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JEE Main201910 Jan 2019Morning ShiftPhysicsMotion in Two DimensionsActual

Two guns A and B can fire bullets at speeds 1 k m / s and 2 k m / s respectively. From a point on a horizontal ground, they are fired in all possible directions. The ratio of maximum areas covered by the bullets fired by the two guns, on the ground is:

Options

  1. A1 : 16
  2. B1 : 2
  3. C1 : 4
  4. D1 : 8

Correct answer

A. 1 : 16

Step-by-step solution

A 1 A 2 = π R m a x 1 2 π R m a x 2 2 = u 1 4 u 2 4 = 1 16 ∵ m a x . R a n g e = u 2 g

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