Linear Motion With Constant Acceleration Lab report 3(Physics) PDF

Preview

Summary

Lab report...

Description

Linear motion with constant acceleration Physics 2100-15

Experiment 3

Ernesto Trejo

October 9, 2020

Objective: The objective the lab was to measure acceleration of mass on a ramp and compare the result to the theoretical prediction. To obtain the experimental data we must take multiple points of data to get best accuracy of the experiment .

Theory: In this experiment, we are introduced to a diagram which is used as a foundation for data we will obtain after. Important fundamentals in this experiment are velocity, acceleration, and of course position and time we must how hast is an object traveling and, in this experiment, it is a cart and we must figure out how fast it is traveling. The other part is we need to find how much is the speed rapidly changing. In the diagram provided below will give you a much better view and idea on what I am saying. In this There is a ramp and with a cart on the top, the cart is heading down the incline of the ramp and the velocity of the cart will ∆d increase with time (V = ∆ t ) . There are measurements to the ramp, via the

caliper the height of the ramp is 4.418cm. The tracks left foot is 21.25cm and the right is 77.25cm. We subtract the footers to obtain length and the reason why we h do this is to find the angle of the ramp with this equation tan θ= l which comes

out to be θ=4.5 ° and a value of 0.075. Cart

H=4.418cm

77.25cm

l=56

21.25cm

The main end goal of this experiment is to find the percent error %error=

exp−the ∗100 . The theoretical data is already found by the equation the

gsinθ=?

m . We have the angle which is 4.5 and g is the gravitational constant s2

m . All data inputted would come out to be s2 theoretical accerlation=9.8 sin ( 4.5 )=0.769 . The experimental acceleration data for m m up was found and it came out to be −0.807 2 and for down was 0. 7212 2 . s s 9.8

This data of acceleration is found by slope. The average of acceleration up and m . That is all data collected and now for the percent error s2 0.7641− 0.769 %error= ∗100=−0.637191157 . 0.769

down was 0.7641

Data: Acceleration up:

Acceleration down:

Sample calculations:

Go up data This is data for up acceleration data position is given  Distance was found by subtracting C5-C4 which gives us 0.0677 and the same is repeated downward  Speed is the interval divided by the distance gives us the first point 1.354 and the same is repeated downward  The same calculations are done with acceleration down data except with different position data  The position data is all given for both up and down  All data is done through excel

Conclusions: In conclusion to this experiment we were able to find the %error we were looking for through graphing and finding our data along the way. We started by analyzing the diagram given and used it as our foundation to find our theoretical, then our experimental data. There was no errors in the lab because this is a virtual lab experiment and not a in person lab due to the pandemic....