Question

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

• 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 acts towards right
• D. it will move towards right so friction force acts towards right

Answer 1

The correct option is A friction force acts towards left, so it will move towards left

Due to force F, a torque will be generated about point C which makes the yo-yo to rotate in the anticlockwise direction. Due to this the point A will slide towards right and thus a friction force f will act towards left to oppose the motion.

Now due to this friction force , the yo-yo will have an acceleration towrds left and thus will move towards left.