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MHT CET20225 Aug 2022Evening ShiftPhysicsMotion in Two DimensionsActual

A projectile thrown from the ground has initial speed ' u ' and its direction makes an angle ' q ' with the horizontal. If at maximum height from ground, the speed of projectile is half its initial speed of projection, then the maximum height reached by the projectile is aligned & [g = acceleration due to gravity, 30^ = 60^ =0.5, & . 30^ = 60^ = 3 / 2 ] aligned

Options

  1. A2 u ^2 ~g
  2. B3 u^2 8 g
  3. Cu ^2 ~g
  4. Du ^4 2 ~g

Correct answer

B. 3 u^2 8 g

Step-by-step solution

Given at maximum height aligned & u = 1 2 u = 1 2 & =60^ aligned We know, H _ = u ^2 ^2 2 ~g = u ^2 ^2 60^ 2 ~g = 3 u ^2 8 ~g

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