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What is the force that keeps you from sliding on an icy sidewalk kinetic friction static friction?
The force that keeps you from sliding on an icy sidewalk is static friction. Static friction acts when two surfaces are in contact with each other but not moving relative to one another. Once you start moving, the force of kinetic friction takes over to oppose the motion.
What as an example of increasing friction intentionally?
One example of intentional increase in friction is when sandpaper is used to roughen a surface, increasing the resistance between the two surfaces and making it harder for them to slide past each other.
What happens when sand is scattered on icy roads?
Scattering sand on icy roads can help increase traction for vehicles by providing a rough surface for tires to grip onto. The sand creates friction between the tires and the road, helping to prevent slipping and sliding on the icy surface.
What force causes you to move forward when you walk?
When you walk, the force of friction between your feet and the ground propels you forward. As you push off with one foot, the friction from the ground resists your movement, causing you to move in the opposite direction. This process of push and resistance allows you to walk.
Example of ways increasing friction?
Increasing friction can be achieved by using materials with rougher surfaces, increasing the weight pressing the surfaces together, or increasing the normal force acting between the surfaces. Additionally, applying more force parallel to the surfaces in contact can also increase friction by creating more interlocking between the surfaces.
