Question

what does this symbol mean what is the value of this ?
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Answer 1

Explanation:

Hello

This symbol represents coefficient of Static Friction.

Static Friction is the Friction which is in the case when the body is in rest.

Frictional force (f) = coeff of static Friction * Normal force

Answer 2

Hi !

That is micro!

Like we know

Sub multiples of metre are

side note- ^ means 'to the power of '

deci meter ( deci is 10^-1)

centi meter (10^-2)

milli meter (10^-3)

then comes

Micro meter ( it's symbol is prounced as mu) (10^-6)

It's a Greek letter