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COMEDK2013PhysicsLaws of Motion

A car is moving in a circular horizontal track of radius 10 ~m with a constant speed of 10 ~m / s . A bob is suspended from the roof of the car by a light wire of length 1.0 ~m . The angle made by the wire with the vertical is

Options

  1. A3
  2. B6
  3. C4
  4. D0^

Correct answer

C. 4

Step-by-step solution

Given, r=10 ~m , v=10 ~m / s If be the angle made by the wire with the vertical, then aligned &= v² r g &= (10)² (10)(10) =1 &=45^ or 4 aligned

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