frictional force
[ˈfrɪkʃənəl fɔːrs]
nounpl: frictional forces
força de atrito
1. The resistance force that opposes the relative motion between two surfaces in contact
The frictional force between the tires and the road helps the car stop quickly.
A força de atrito entre os pneus e a estrada ajuda o carro a parar rapidamente.
2. In physics, the force that acts opposite to the direction of motion of an object sliding across a surface
We calculated the frictional force using the coefficient of friction and the normal force.
Calculamos a força de atrito usando o coeficiente de atrito e a força normal.
3. The force that prevents or slows down movement between two surfaces due to their surface characteristics
The frictional force increases when the surfaces are rougher.
A força de atrito aumenta quando as superfícies são mais ásperas.
The term 'frictional force' is primarily used in academic and technical contexts in both English-speaking countries and Brazil. It is a fundamental concept taught in physics curricula and is essential in engineering, mechanics, and materials science. The Portuguese equivalent 'força de atrito' is equally formal and technical.
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