Speed is a scalar (non-directional) representation of velocity. Friction affects the magnitude of both and the direction of velocity.
Friction does not affect inertia, but it affects momentum. Momentum is the product of the mass of an object and its speed. Friction forces, if present, will always act to decrease the momentum of a moving object.
Yes it does. The more "rough" the texture is, the more friction there will be. This will cause a decrease in speed and acceleration.
Any and every object that's moving through air at speed is affected by air friction.
My textbook says speed between two surfaces does not affect friction.
Speed does not affect the force of friction.
Speed is a scalar (non-directional) representation of velocity. Friction affects the magnitude of both and the direction of velocity.
Friction does not affect inertia, but it affects momentum. Momentum is the product of the mass of an object and its speed. Friction forces, if present, will always act to decrease the momentum of a moving object.
Friction and Gravitational forces
Yes it does. The more "rough" the texture is, the more friction there will be. This will cause a decrease in speed and acceleration.
Any and every object that's moving through air at speed is affected by air friction.
That depends on the exact circumstances. Solid friction hardly depends on the speed at all. In fluid friction, the situation is more complicated. Usually there is some range of speeds for which friction is more or less proportional to speed; at higher speeds, the force of friction may even become proportional to the square of the speed.
Ff = μs Fn
My textbook says speed between two surfaces does not affect friction.
Actually, friction does depend on velocity. If you stop your car you have to ease up on the brakes as you slow down because friction increases as you slow down. This effect has been observed for objects travelling at bullet velocities. Friction decrease as speed increases.
No. The speed of the object does not affect the amount of friction between an object and the surface. Friction is affected by the types of surfaces in contact, smoother surfaces produce less friction, and the weight of the object moving horizontally affects the resistance relative to the two surfaces in contact. Greater weight causes greater resistance.
Satellites in a low orbit, however, are slowed by friction with Earth's atmosphere.