1) from your linear fit, what is your spring constant? What is the distance from

Question

1) from your linear fit, what is your spring constant? What is the distance from zero the cart was dragged? (Explain your answer with details) 2) calculate the expected work based on k. Does this match well with the area you found under the curve? (Explain your answer with details) 3) is the work done by a spring as you would expect? (Explain your answer with details) 4) WHAT IS THE PURPOSE OF THIS EXPERIMENT Work Done by a Variable Force (SprinRS) Today we will be stretching a spring while monitoring the force and position with the force sensor and 1) What is the equation for Force as a function of positin for a spring? ts 2) What do you expect the Foree w the spring itself. A monitoring the force required to strech the spring, not the force due to diagram is helpful in evaluating your repsonse. Based on this what functional form do you expect the work done by the force stretching the spring to have W: Kx Equipment: Track Spring Force Sensor Position Sensor Computer 200 gram weight Procedure: sensor to the computer and open logger pro. a connect the force sensor and position vs. time. Delete the graphs for position vs. time and velocity Change the Force vs. Time graph to be a force vs. Position graph by clicking on time and selecting 'position' instead. d Calibrate the force sensor. To ue do this, you will need to use the calibration menu (separately for N each This menu may be found by going in to Experiments Setup Sensors Show all interfaces and then select the sensor to be calibrated and select Calibrate. First, click on calibrate now in the calibrate window. With no wieght hung on the probe enter zero in the first text box and then click Keep. Next, the 200 gram is hung from the sensor and 1.96 N is enetered for the force for in the second text calibrated. box and click Keep. The sensor should now be be sure. e) Check claibration with a few weights just to

Explanation / Answer

4)

The purpose of this expeiment was to calculate thw work of variable forces,

the spring foce is a variable force.(It varies with respect to displacement)

3)

yes it follows as per kx2/ 2

2)

wor done based on k is :

= kx2/2

k=13 N/m

x=0.139 m

=0.125 joule

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