Table of Contents
- 1 What is the magnitude of limiting friction?
- 2 What is the magnitude of kinetic friction?
- 3 What is the direction of limiting friction?
- 4 Why is the magnitude of dynamic friction less than limiting friction?
- 5 What direction is kinetic friction?
- 6 What is the direction of limiting frictional force?
- 7 Where is the coefficient of kinetic friction?
What is the magnitude of limiting friction?
The magnitude of limiting friction is independent of area and shape of surfaces in contact as long as the normal reaction remains the same. iii. The magnitude of limiting friction ‘F’ is directly proportional to normal reaction ‘R’ between the two surfaces in contact.
What is the magnitude of kinetic friction?
45.0 N
The magnitude of kinetic friction is given as 45.0 N. Kinetic friction is related to the normal force N by f k = μ k N f k = μ k N ; thus, we can find the coefficient of kinetic friction if we can find the normal force on the skier.
What is the direction of limiting friction?
1. The direction of limiting frictional force is always opposite the direction of motion.
How is the magnitude of kinetic friction compared to the maximum static friction?
Kinetic friction (also referred to as dynamic friction) is the force that resists the relative movement of the surfaces once they’re in motion. The static friction between two surfaces is always higher than the kinetic friction (at least, in practical, real-world applications).
What is the relationship between kinetic and limiting friction?
What is the relationship between Kinetic and limiting friction? Notes: The Kinetic friction is always slightly less than the limiting friction.
Why is the magnitude of dynamic friction less than limiting friction?
Limiting friction is directly dependent upon the magnitude of normal reaction N between two surfaces in contact. Hence we can say dynamic friction is less than the limiting friction since more force is required in case of limiting friction to move the body.
What direction is kinetic friction?
Kinetic friction acts opposite the object’s sliding direction. Kinetic friction always opposes the object’s sliding direction.
What is the direction of limiting frictional force?
The direction of limiting frictional force is always contrary to the direction of motion. Limiting friction acts tangentially to the two surfaces interacting. The magnitude of limiting friction is proportional to the normal reaction amidst the two surfaces.
What is the magnitude of the frictional force?
The magnitude of the frictional force has two forms: one for static situations (static friction), the other for when there is motion (kinetic friction). where is the coefficient of static friction and is the magnitude of the normal force (the force perpendicular to the surface).
What is the magnitude of kinetic friction on a ski slope?
The magnitude of kinetic friction was given in to be 45.0 N. Kinetic friction is related to the normal force as ; thus, the coefficient of kinetic friction can be found if we can find the normal force of the skier on a slope.
Where is the coefficient of kinetic friction?
Static friction is a responsive force that increases to be equal and opposite to whatever force is exerted, up to its maximum limit. Once the applied force exceeds , the object will move. Thus where is the coefficient of kinetic friction.