You can do the following experiment at home. It is optional, not compulsory but it will help you have a better understanding of the concept of Friction.
Revise all the concepts related to force. Use the document shared with you yesterday.
Some questions to ponder upon:
What is air resistance?
What is needed to do physical work?
How is potential energy different from kinetic energy?
Does centrifugal force exert an inward force or outward force with respect to the centre of the motion?
What happens when brakes are applied to a car? Which force acts on the tyres?