Which of the following statements in incorrect about friction?Group of answer choicescoefficient of kinetic friction depends on the speed of motioncoefficient of kinetic friction depends on the normal force on the objectcoefficient of kinetic friction depends on acceleration of the objectcoefficient of kinetic friction does not depend on the direction of motioncoefficient of kinetic friction depends on the direction of motion

Which of the following statements is correct about friction?Group of answer choicesFriction always acts in the opposite direction to the direction of motion of an objectFriction is measured in kilogramsFriction always acts in the opposite direction to the direction of motion of an objectFriction always acts on stationary objects

Which of the following statements about friction is NOT correct? A.The force of kinetic friction is less than the force of static friction B.The force of kinetic friction between two surfaces is independent of the areas in contact provided the normal reaction is unchanged C.The force of rolling friction between two surfaces is less than the force of sliding friction D.The angle of friction is the angle between the normal reaction and the force of friction E.Friction may be reduced by lubrication

Which of the following statements about friction is TRUE?A. Friction opposes motion of objects.B. Friction occurs between non-rubbing surfaces.C. Friction causes moving objects to move faster.D. Friction acts in a direction similar to the direction of an object’s motion

Which of the following statements are true about friction?Friction is a forceFriction is a non-contact forceFriction is a contact forceFriction is a type of support force

Choose the correct optionSelect an answerAThe friction force is dependent on the roughness of surface.BThe kinetic friction is proportional to normal reactionCThe friction is independent on the area of contactDAll statement are correct.