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NTA Abhyas JEE Main2020PhysicsMotion in Two DimensionsPractice

Time taken by the projectile to reach from A to B is t . Then the distance AB is equal to

Options

  1. Aut 3
  2. B3 ut 2
  3. C3 ut
  4. D2 ut

Correct answer

A. ut 3

Step-by-step solution

Horizontal component of velocity u H = u cos 60 o = u 2 ∴ AC = u H t = u t 2 and AB = AC sec 30 ° = ut 2 2 3 = ut 3

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