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.
Now To talk about the forces that allow the car to move. There are two main aerodynamic forces acting on any object moving through the air. Lift is a force that acts 90° to the direction of travel of an object. Usually we think of lift when we think of an airplane. The plane travels forward (horizontally), and lift acts 90° to that motion of travel –
The velocity of the rock at any given point can be determined by adding it's translational velocity at the center of mass (the orange arrow) with it's rotational velocity.
The first part of the experiment was to measure an amount of baking soda to start out with. For the first and second time we performed the experiment we used 1 g of
the length of the slope can be used to calculate the speed of the car
Hold the trolley with its front touching the start line. 5. What is the difference between a'smart' and a'smart'? Simultaneously start the stop clock and release the trolley. careful not to push it or exert any extra force on it).
Driving has been around for just over 100 years, but the first thoughts of physics has been around since 400 BC (to be edited ). Driving safety implications have been discussed and improved over the decades as technology begins to leap ahead of its time. According to physician; Newton, there are three laws of motion that is now used in everyday life to try and help prevent deaths due to driving implications. The first law is “An object at rest will remain at rest unless acted upon on by an unbalanced force.” The object, or Car is in motion continues its motion with the same speed and in the same direction unless acted upon by an unbalanced force. The second law is “Acceleration is produced when a force acts on a mass.” While the third Law of Motion is : “ For every action there is an equal and opposite re-action.This means that for every force there is a reaction force that is equal in size, but opposite in direction.”
be the height of the ramp which in turn would affect the angle of the
Step 6: Next remove the flat tire from the working area. Flat on the ground behind your car is the best place as this will help prevent it from rolling into traffic and it will be out of the way as well.
The average driver doesn’t think about what keeps their car moving or what keeps them on the road, but that’s because they don’t have to. The average driver doesn’t have to worry about having enough downforce to keep them on the road or if they will reach the adhesive limit of their car’s tires around a turn. These are the things are the car designers, professional drivers, racing pit crews, serious sports car owners, and physicist think about. Physics are an important part of every sports and racing car design. The stylish curves and ground effects on sports cars are usually there not just for form but function as well allowing you to go speeds over 140 mph in most serious sports cars and remain on the road and in reasonable control.
...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.
Newton’s Second Law of Motion. It states, “The force acting on an object is equal to the mass of that object times its acceleration (Lucas, paragraph 2).” Mike 's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s/s. Using Newton 's Second Law, you can compute how much force Mike is applying to the car with this formula ( F= 1,000 x 0.05 which equals 50 newtons). This is easy,
The purpose of the lab is to find the change in velocity and acceleration of the toy car. We predicted that as the distance the car will travel the longer it will take to get there. We also predicted that graphs for speed and acceleration will be the same and will have a constant motion. After taking data and recording the different trials our prediction was sort of true. As the distance increases the time increases as well. For example 60 cm took an average of 1.28 seconds, 70 cm took an average of 1.508 seconds, 80 cm took an average of 1.89 seconds, 90 cm took an average of 2.076 seconds, and 100 cm took an average of 2.34. We were correct when we predicted that the graph for speed and acceleration would both have a constant motion because
3. I will then do the same experiment with speeds of 8 km/h and 12
Law two can be used to calculate “the relationship between an objects mass (m), its acceleration (a), and the applied force (f) is F= ma.” This formula is used in all of the above components in the car.