The tractor is in linear motion but the wheels of the tractor are in rolling motion.
When the sudden turn comes then it wants to continue in rolling motion due to conservation of angular momentum.
But the angular momentum is applied and due to inertia, the weight and friction shifts on the bigger wheels causing difference in the angular speed.
Thus, the bigger rear wheels of the tractor rotate more slowly as compared to front small wheels because the bigger wheels have greater moment of inertia due to their mass as compared to front small wheels. That’s why the rear wheels are bigger than the front wheels.
To know more about angular motion, refer: https://brainly.com/question/13014885
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