lab 4 help (1 point)

Title of the Experiment:

Student's name:

Section SLN:

TA's Name:

Week of the experiment:

Delete all the comments in red before you submit lab report.

Objectives:(3points)

Experimental Data (3 points):Insert experimental graphs and obtain from the graphs all the experimental data that will be used for further calculations in Data Analysis.

PART 1. Static Friction

1a) Cart on the horizontal track

1b)Cart on an inclined plane

Trial	Critical angle (?)

PART 2.Kinetic friction

2a) Cart on the horizontal track

Run	acceleration, a

2b)Cart on an Incline plane.

Run	acceleration, a

Data Analysis (10 points):

PART 1. Static Friction

1a) Cart on the horizontal track.

• The experimental value of the coefficient of the static friction_s calculated as follows:

(Show equation and calculation)

• The discrepancy between the experimentally determined _s and its actual given value has been calculated to be:

(Show equation and calculation)

1b)Cart on an Incline plane

• The experimental value of the coefficient of static friction_s is calculated with equation (4) as follows:

(Show equation and calculation)

• Determine the discrepancy between the above-calculated value and the given one to compare them: 100%* (|calc. value- expect. value|/ expect. value).

(Show equation and calculation)

PART 2.Kinetic friction

2a) Cart on the horizontal track

• For run 1 the coefficient ofkinetic friction ?kis calculated as follows:

(Show equation and calculation)

• For run 2 the coefficient ofkinetic friction ?kis calculated as follows:

(Show equation and calculation)

• The average values of coefficient ofkinetic friction ?k from both runs is:

(Show equation and calculation)

• The discrepancy between the experimental and theoretical values is:

(Show equation and calculation)

2b)Cart on an Incline plane.

• For run 1 the coefficient ofkinetic friction ?kis calculated as follows:

(Show equation and calculation)

• For run 2 the coefficient ofkinetic friction ?kis calculated as follows:

(Show equation and calculation)