physics lab report. Aim To determine the coefficient of static friction (μs) between a wooden block and a granite plane

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Aim

To determine the coefficient of static friction (μs) between a wooden block and a granite plane.

Data Collection

Table (1): hanging mass needed to move the (wooden block + masses).

Data Processing and Presentation

  1.        Coefficient of static friction (μs)

                                 Wooden block + Masses

                    Normal force (N)

       

Friction force (fr)                    Tension (T)

            Pulley

                        Weight                                Tension (T)

                                                

                        Hanging masses

                                                Weight (W2) 

Figure (1): the setup of the experiment and the free body diagrams of the hanging masses and the (wooden block + masses)

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Variables

M1: mass of wooden block + masses                                

M2: mass of hanging masses

N: normal force

fr: frictional force

W1: weight of wooden block + masses

W2: weight of hanging masses

Constants

g: acceleration due to gravity

μs: coefficient of static friction

 

At the instant of motion:

                                            Frictional force (fr) = Weight (W2)

                          ...

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