Observation Table: block lying on side Madd Units 11h 131 Units: ooo Average A39

Question

Observation Table: block lying on side Madd Units 11h 131 Units: ooo Average A39M haN Result: The coefficient of friction between the given surfaces is Questions 1) Describe how,if at all,the coefficient of friction you determined depends on the total mass of the sled. For example, does double when M doubles? Be specific. Does greatly increase? Greatly decrease? Slightly increase? Slightly decrease? Vary randomly? Stay about the same? How would the previous question be answered theoretically (i.e., based on the relevant equations) rather than experimentally? 2)

Explanation / Answer

1) From the values provided in the observation table it can be easily deducted that value of coefficient of friction does not depends on the mass but depends on theeta.

hence value of coefficient  of friction is nearly independent of mass.

2) For an inclined plane with inclination angle theeta wrt horizontal,

coefficient of friction=Tan(theeta)

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