Direction of Frictional Force on Tyre or Wheel

For these type of questions, it is important to identify which tyre/wheel is connected/powered by the engine or the person.

On each tyre or wheel, there are actually two types of frictional force.

1. Frictional force on wheel

2. Frictional force on road/ground

You can view the explanation plus the 4 examples from Olevel p1 in the video below.

Examples used in the video.

2007PP P1Q5 Answer: Option D

2004PP P1Q5Answer: Option D

2020PPp1q6 Answer: Option B

2021PP P1Q7 Answer: Option C