Question

The coefficient of friction (µ) is equal to
a) sin θ
b) tan θ
c) cos θ
d) cot θ​

Answer 1

Answer:

The correct option is b) tan θ

Explanation:

• The angle of friction is the angle formed by the normal reaction made with the normal force and the consequent frictional force.
• The angle of friction is expressed as:µ =tanθ
• Here, µ denotes the limiting friction coefficient and the angle of friction.
• The friction coefficient is the ratio of the normal force pressing two surfaces together to the frictional force preventing motion between them.
• Typically, it is represented by the Greek letter mu (µ). In terms of math, is equal to F/N, where F stands for frictional force and N for normal force.

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Answer 2

Answer:

Option(b)tan$\theta$ is the correct answer.

Explanation:

• The friction coefficient is the ratio of the normal force pressing two surfaces together to the frictional force preventing motion between them.

• Typically, it is represented by the Greek letter mu(μ). In terms of math, μ is equal to $\frac{F}{N}$, where F stands for frictional force and N for normal force.

• The angle created by the normal reaction to the normal force and the ensuing frictional force is known as the angle of friction.

• The formula for the friction angle is, μ  = tan$\theta$.

• Static friction, sliding friction, rolling friction, and fluid friction are the four main categories of friction.

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