frictionthe resistance encountered when one surface moves over anotherFriction between the tyre and road surface is essential for vehicle traction and braking.NoteFriction between the tyre and road surface is essential for vehicle traction and braking.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now