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Units And Measurement

Question

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What should be the minimum coefficient of friction of rough inclined plane so that the hollow sphere rolls down without slipping?

Solution

For rolling without slipping, the minimum value of coefficient of friction between the cylinder and the inclined plane is given by,

straight mu space equals space straight F over straight R space equals space fraction numerator 1 space mg space sin space straight theta over denominator 3 space mg space cos space straight theta end fraction space equals space 1 third space tan space straight theta

Some More Questions From Units and Measurement Chapter

Can we use different units to measure same physical quantity?

To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

How many fundamental quantities are there in mechanics?

How many fundamental quantities are there in Physics?

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