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Ajay.makhecha
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When a body is in motion , does kinetic and static friction act simultaneously
Assuming you mean that the body is moving with respect to the surface providing the friction, no. It's one or the other.Ajay.makhecha said:When a body is in motion , does kinetic and static friction act simultaneously
Kinetic friction is the force that resists the motion of two surfaces that are in contact and moving relative to each other. Static friction, on the other hand, is the force that resists the initial movement or attempted movement between two surfaces that are in contact.
The coefficient of friction is a dimensionless constant that represents the ratio of the frictional force between two surfaces and the normal force pressing the surfaces together. It is used to calculate both kinetic and static friction, with a higher coefficient resulting in a stronger frictional force.
The magnitude of both kinetic and static friction can be affected by several factors, including the nature of the surfaces in contact, the amount of force pressing the surfaces together, and any external forces acting on the surfaces.
Kinetic and static friction are present in many everyday activities, such as walking, driving a car, and using a pencil to write. They help us maintain balance and control over objects by providing the necessary resistance to motion.
Yes, the coefficient of friction can be changed by altering the surfaces in contact or by adding a lubricant. For example, adding oil to a surface can reduce the coefficient of friction and make it easier for objects to slide past each other.