the angle for table 1. is 30
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✓ Part 2. Static Friction 1. Procedure • Click Play. Use the step forward or video slide bar to adjust the video to the frame before the figure starts to slide downward. . Click on the "Toolbox" icon and select the protractor. • Use the protractor to measure the angle. To obtain the correct measurement for the angle, place the origin or center mark of the protractor against the lower right edge of the board. The angle measurement would be recorded based on the position of the lower edge of the board. . • Assuming a weight (Fw) of 10.0 N for the Einstein figure, calculate for the y-component (Fwy) and x-component (Fwx) of the weight (mg) Fwy - mg cos Ⓒ Fwx-mg sin e The Normal force (Fn) is in the opposite direction but equal to the magnitude of Fwy • Static Frictional force (Ffs) acting on the object is in the opposite direction but equal to the magnitude of Fwx. • Calculate for the Coefficient of Static Friction (uFs) by dividing the Static Frictional Force (Ffs) by the Normal force (Fn). • You can download and use the attached Excel worksheet posted in Blackboard to verify your calculations. Enter your measurements only in the highlighted sections of the worksheet.
2. Be careful of your positive (up and to the right) and negative (down and to the left) signs. Table 1. Static Friction Along an Inclined Plane (use one row only) Fwx 1 *** Cont Fwy N *** Fn variable N *** variable N *** Ffs variable N *** variable HFs units) *** variable
Francisco Macias Score: 5/100 (5.00%) ✓ Part 3. Kinetic Friction 1. Procedure . Click the Rewind Button. Close the Protractor by clicking on the upper right hand "x" to place it back in the Toolbox. • Select the Metric Ruler and measure the distance in meters from the sole of Einstein's shoe touching the inclined plane to the lower right edge of the board. • Use the step forward of video slide bar to adjust the video to the frame where the figure starts to slide downward. • Close the Protractor by clicking on the upper right hand "x" to place it back in the Toolbox. . Click on the "Toolbox" icon and select the stopwatch. Reset the stopwatch to 0.00000 s. • Record the time needed by Einstein's shoe sole to reach the right edge of the board. • Calculate for the acceleration of Einstein using the equation: a= 2d t² 1 . Since the weight of the Einstein figure is 10.0 N, then mass is 1.02 kg. The net force acting on it can be calculated using Newton's 2nd Law: Fnet-ma The net force is due to the interaction between the x-component of the weight (Fwx) and kinetic friction (Ffk). To determine. the force of kinetic friction, subtract Fwx from the net force (Fnet). • Calculate for the coefficient of Kinetic Friction (uFs) by dividing the Kinetic Frictional Force (Ffk) by the Normal force (Fn). 2. Be careful of your positive (up and to the right) and negative (down and to the left) signs. Table 2. Kinetic Friction Along an Inclined Plane (use one row only) O Time $ 0.46667 variable: Acceleration m/s^2 *** Fnet variable N ** Fik variable N ** HFK variable units Saved variable