What features will your car have to reduce the forces of friction and drag? please help , i’m doing online class & my teacher doesn’t teach, we just read and try our best & i have no idea what this even means

To decrease friction in machinery, low-friction materials such as Teflon and other plastics are used. Contact surfaces are designed to be smooth as possible. Lubricants are introduced to reduce friction. To decrease drag on an airplane, smooth surfaces and a streamlined design are used.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible