1. For a), describe the plot. What is the value of the slope? Considering the scatter in the data points, do you think the slope is significantly different from zero? If it is zero, explain why? Is there any significant feature of the plot that relates to the value of some physical quantity in the experimental setup?

2. For b), describe the plot. What are the important features? What is the value (plus units) of the slope? Explain why the slope has this value.

PART 1 Trial 1 Mass of cart with sensors (kg) Regression line for force vs. acceleration data : . 3.. :_ + O-OHO Trial II Table 2 Mass of cart with sensors and additional mass (kg) Regression line for force vs. acceleration data 2 PART 2 Table 3 Fla (stl'm) Hanging mass [kg] Mass of cart = kg Table 4 Trial Hanging mass (kg) | Mass added to cart (kg) Total cart mass (kg) 1 2 3 4 . . _ 5 *0-1'11 0.1 00500 ugq PART 2 Cart with force sensor and accelerometer Figure 5 a) Constant cart mass and changing hanging weight 1' To investigate the effect of a constant force acting on the cart, set up the apparatus as shown in Fig 5A The cart should still have the four 125 g masses attached. The string should be long enough that the cart can run approximately the full length of the track Make sure there is an "endstop" to prevent the cart running into the pulley 2 Before attaching a hanging mass, clear the data and set the sensors to zero This should be done before every subsequent measurement. 3' Starting with a hanging mass of0l05 kg, start data collection while holding the can stationary for about 1 second, then let go the cart 4' Select appropriate parts of the Force graph and Acceleration graph, click the Statistics button to find their average values then evaluate Fla and record the value in Table 3. 5' Repeat steps 2, 3, and 4 for the other hanging masses shown in Table 3' 6' Open the Logger Pro tile "Table 3" from folder Lab {15' Click on page 2 and input the values of Fla and the hanging mass from Table 3, then create a graph of F/a versus hanging mass b) Constant hanging mass and changing cart mass 7' Open the Logger Pro le "Table 4" from folder Lab 05 A For each of the added cart masses shown in Table 4, and keeping the hanging mass at 0.1 kg, perform the steps necessary to obtain a graph of F/a versus the total cart mass (cart plus added masses)