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AP EAMCET202420 May 2024Evening ShiftPhysicsMotion in Two DimensionsActual

If two stones are projected at angle ' ' and (90- ) respectively with horizontal with a speed of 20 ~ms ⁻¹ . If second stone rises 10 m higher than the first stone, then the angle of projection ' ' is (acceleration clue to gravity =10 ~ms ⁻² )

Options

  1. A45^
  2. B30^
  3. C60^
  4. D20^

Correct answer

B. 30^

Step-by-step solution

aligned & u =20 ~ms ⁻¹ & H ₂= H ₁+10 u ₂^2 ^2 (90^ - ) 2 ~g = u ₁^2 ^2 2 ~g +10 & (20)^2 ^2 20 = (20)^2 ^2 20 +10 & 2 = 1 2 = 60^ & & =30^ aligned

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