Q38 / 223 · NTA Abhyas (NEET) 2020 · Physics · Rotational Motion

A yo-yo is placed on a rough horizontal surface and a constant force F, which is less than its weight, pulls it vertically. Due to this

       Figure

  • Correct answer
    A
    friction force acts towards left, so it will move towards left
  • B
    friction force acts towards right, so it will move towards right
  • C
    it will move towards left, so friction force acts towards left
  • D
    it will move towards right so friction force acts towards right

Solution

F will provide anticlockwise torque about the centre due to which the bottommost point will tend to move towards right, so friction will act towards left. Hence it will move towards the left.

Hence, the correct answer is option: 'A'.

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