Question

MCQ 6. The correct sentences among the following are a) Normal force doesn't affect the frictional force. b) Area of contact doesn't affect the frictional force. c) Normal force affects the frictional force. d) Area of contact affects the frictional force. A) a and d. B) a and b C) b and c d) c and d​

Answer 1

Answer:

It’s perhaps the second week of your introductory physics course. Your instructor starts talking about friction and writes the following two formulas on the board. Then there is probably some sort of lecture like this: Friction is a contact force when two surfaces interact. The second equation is the kinetic frictional force that is used […]