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AP EAMCET201823 Apr 2018Evening ShiftPhysicsRotational MotionActual

A particle of mass 15 ~kg is moving with a uniform speed 8 ~ms ⁻¹ in x y -plane along the line 3 y=4 x+10 , then the magnitude of its angular momentum about the origin in kg m ^2 ~s ⁻¹ is ( 53^ = 4 5 )

Options

  1. A240
  2. B80
  3. C120
  4. D280

Correct answer

A. 240

Step-by-step solution

Angular momentum =m v r₁ =15 8 ( 10 3^2+4^2 )=15 8 2=240 ~kg - m ^2 ~s ⁻¹

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