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# Why are vehicle tyres treaded(A) To increase friction(B) To decrease friction(C) To multiply friction(D) To decrease grip

Last updated date: 20th Jun 2024
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Hint The friction between two objects is directly related to the degree of roughness of the surfaces in contact. Tyres are treaded to increase the roughness of the tyres.
Formula used: In this solution we will be using the following formulae;
$F = ma$ where $F$ is force, $m$ is mass and $a$ is acceleration of the object.

To avoid confusion, the force creates a never ending motion because since $F = ma$ , then the slightest force $F$ creates an acceleration $a = \dfrac{F}{m}$ which is non zero however minuscule the force may be. Now due to the inertia of motion, these bodies will tend to remain in motion even after the force has been released. Thus without friction to act on it to stop the motion, it will continue to be forever in motion.