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Most Important Selected Qs for JEE AdvancedPhysicsMotion in Two Dimensions

A particle is projected at an angle =30^ with the horizontal, with a velocity of 10 ~m / s then

Options

  1. Aafter 2 s the velocity of particle makes an angle of 60^ with initial velocity vector
  2. Bafter 1 s the velocity of particle makes an angle of 60^ with initial velocity vector
  3. Cthe magnitude of velocity of particle after 1 s is 10 ~m / s
  4. Dthe magnitude of velocity of particle after 1 s is 5 ~m / s

Correct answer

C. the magnitude of velocity of particle after 1 s is 10 ~m / s

Step-by-step solution

T = 2 u g = 2 10 1 2 10 =1 sec .

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