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KVPY2011PhysicsRotational Motion

Figure below shows a small mass connected to a string, which is attached to a vertical post. If the ball is released when the string is horizontal as shown, the magnitude of the total acceleration (including radial and tangential) of the mass as a function of the angle is- Position

Options

  1. Ag
  2. Bg 3 ² +1
  3. Cg
  4. Dg 3 ² +1

Correct answer

D. g 3 ² +1

Step-by-step solution

Radical acceleration = V ² R = 2 ~g =2 ~g tangential acceleration =g total acceleration = 4 ~g ² ² + g ² ² g 1+3 ²

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