NEET Physics Friction MCQ Question
Which of the following combinations about friction are correct?
Kinetic friction is dependent on the area of contact and is greater than static friction.
Static friction can be equal to or less than the product of the coefficient of static friction and the normal force.
Kinetic friction is nearly independent of velocity and is described by a coefficient that depends only on the surfaces in contact.
Frictional force always acts in the direction of motion of an object.
Correct Answer
Detailed Explanation
Static friction can be expressed as f_s ≤ μ_s N, meaning it can be equal to or less than the maximum static friction. Kinetic friction is independent of the area of contact and nearly independent of velocity, but it does not depend on the area.
Found an issue with this question?
Related Questions
More from Friction
A block of mass 5 kg is placed on a horizontal table and experiences a static friction force of 15 N. What is the minimum force required to start movi...
A block of mass m slides down the plane inclined at angle 30° with an acceleration g/4. The value of coefficient of kinetic friction will be :
More from
A force of 600 N is applied to a 10 kg block on a horizontal surface with no friction. What is the acceleration of the block?
Match Column-I with Column-II. Column-I Column-II (a) Impulse imparted to a ball by a batsman (i) Change in momentum of the ball (b) Newton's...
What is the impulse imparted to a ball of mass 0.15 kg that is hit back by a batsman at a speed of 12 m/s?