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You might need as little friction as possible in situations like lubricating machine parts to reduce wear and improve efficiency, minimizing friction between moving components in high-speed vehicles like airplanes or cars to maximize speed, or reducing friction between surfaces in medical devices to prevent tissue damage during surgery.
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When do you need a little friction?
A little friction can be necessary in situations where you need to slow down or control movement, such as when driving a car or walking on slippery surfaces. It can also be helpful in activities like sports that require traction or grip.
When does friction need to be as high as possible?
Friction needs to be as high as possible when trying to prevent objects from sliding or when maximizing the grip between two surfaces, for example in car tires on a wet road or shoes on slippery surfaces.
Should friction be reduced if possible?
In some cases, reducing friction can be beneficial, such as in machinery to increase efficiency and in sports to improve performance. However, friction also plays a crucial role in providing traction, preventing sliding, and enabling control in various situations. Therefore, balancing the need for friction reduction with maintaining safety and stability is important.
Can you pick up an apple without friction?
no. because if their was not fritction no one could move
Is friction always something we want reduce?
NO!You very much need to increase friction between car tires and the road surface in winter. Accumulated snow and ice can already reduce friction there to the point that stopping and steering the car becomes impossible leading to many severe and occasionally fatal accidents.Vehicle brakes also need as much friction as possible to efficiently stop the vehicle when needed.Sandpaper and other abrasives depend on friction to smooth and clean surfaces.etc.
