Maitrey Patel
Lab partners: Mike Erezuma, Kristen Marks 02/11/15
College Physics 1: Laboratory 3
Experiment 3: Uniformly accelerated motion
1. INTRODUCTION
In this experiment we learned about equations which will give us an answer to the following situations such as; object is free falling and a car which is moving on a linear track. We also learned that these equations will give us the distance traveled, the time it took to travel, the initial velocity where it started from, and the instantaneous velocity of the object. We have also learned that acceleration is referred to gravity (g) which is 9.8m/s^2 when dealing with free falling object. The purpose of this experiment is to calculate average acceleration and gravitational
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When graphed the results shows a straight line such as;
∆v_i ∆v_i
the slope of this graph would be g. When you calculate the slope of g you then compare it to the accepted value 9.80m/s^2.
2. Linear Track On a linear track we have a car running with the help of gravity. The track is elevated causing the car to be on the top. Because the linear track is elevated which causes the gravitational force to be split into components causing a=g×sinθ
Looking at the figure above we get to see that the car has a force which is acting F=mg. According to the figure gravitational force is written in terms on which is perpendicular and the other is parallel. Now the normal reaction N cancels out the perpendicular component leaving the parallel force which can accelerate the car which is given by a=g×sinθ.
3. EXPERIMENTAL
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Set up and level the linear track.
b. Elevate one end of the track until the inclination angle is 5°.
c. On the computer, open the file titled: P06bisGravity.ds. The same one you used in the first part of the experiment.
d. Hold the cart on the elevated end of the track no closer than 15 em (about 6 inches) from the
Motion Sensor.
e. Start recording data: click 'Start'. Release the cart. Stop the cart before it bounces at the end of track and stop recording data.
f. Analyze the data to fmd the acceleration of the cart following the same procedure used in the first part of the experiment.
g. Record your results in your lab notebook.
h. Delete the data and repeat the measurement two more times.
i. Find the average value of the cart's acceleration; calculate the value of the gravitational acceleration using equation 3.8, and the percent error.
j. Elevate the end of the track until the inclination angle is 10°.
k. Repeat steps d to g. Always start the car from rest at the elevated end of the linear track.
a. Data of angle 5^°: 0.991m/s^2, 0.983m/s^2, 0.977m/s^2, 1.000m/s^2 average slope= (0.991m/s^2+0.983m/s^2+ 0.977m/s^2+1.000m/s^2)/4= 0.988m/s^2
g=gx/sinθ
* In case you are curious, the engine rpm got up to about 7000 rpm and the track speed got up to about 60 mph or more during this clip. I supported the track with a stand and ran the throttle while an observer ran the camera.
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the length of the slope can be used to calculate the speed of the car
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...e rider or the car. But as the train hits a turn in the track, it will want to continue going forward. The track will impede this from happening and push back at the rider and the car, pinning the rider to the side of the car. Although the rider will feel as if there is a force acting on them towards the outside of the curve, there is actually a force called centripetal force pushing towards the inside of the track. This lateral force is actually a force of 1-G, or the equivalent of lying down on your side.
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F = ma : where F is force; m is the mass of the body; and a is the acceleration due to that particular force
be the height of the ramp which in turn would affect the angle of the
3. I will then do the same experiment with speeds of 8 km/h and 12
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