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AIIMS2013PhysicsMotion in Two Dimensions

A ball of mass m is tied up with string and rotated along a horizontal circle of radius r . At an instant, its velocity is v , and tension in string is T , the force required for circular motion is

Options

  1. AT- m v^2 r
  2. BT+ m v^2 r
  3. Cm v^2 r
  4. Dzero

Correct answer

C. m v^2 r

Step-by-step solution

From figure, T = m v^2 r

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