# 0.11 Phy1080: motion -- variable velocity and acceleration  (Page 5/19)

 Page 5 / 19

Plot height versus time

Use your graph board and about 30 pushpins to plot the height of the arrow on the vertical axis versus time on the horizontal axis. Because of the largenumber of points, you shouldn't need to connect the pins to get a good feel for the shape of the graph. Plot one point each 0.25 seconds. Allow for amaximum time value of about 7 seconds and a maximum height value of about 165 feet.

Tactile graphics

The svg file named Phy1080a1 contains a graph that serves for this exercise plus the next couple of exercises. This graph plots the height of the arrow, thevelocity of the arrow, and the acceleration of the arrow versus time from the time that it is released until it strikes the ground approximately six secondslater.

The image contained in this file is shown in Figure 1 for the benefit of your assistant who will manually emboss the diagram. Note that as usual, this is a mirror image of the image that is to be presented to the student afterembossing. A non-mirror-image version is shown in Figure 2 .

Figure 1 . Mirror image contained in the file named Phy1080a1.svg.
Figure 2 . Non-mirror-image contained in the file named Phy1080a1.svg.

Key-value pairs

The table of key-value pairs for this file is provided in Figure 3 .

Figure 3 . Key-value pairs for the image in Phy1080a1.svg.
```m: Height, velocity, and acceleration versus time. n: 150o: 100 p: 50q: 0 r: -50s: -100 t: Height in feetu: Velocity in feet per second v: Time in secondsw: 0 x: 6y: Acceleration in feet per second per second z: File: Phy1080a1.svg```

Create a script

Please copy the code shown in Listing 1 into an html file and open the file in your browser.

Listing 1 . Variable velocity exercise #1.
```<!---------------- File JavaScript01.html ---------------------><html><body><script language="JavaScript1.3">document.write("Start Script</br>"); //Declare and initialize constantsvar g = -32.2;//acceleration of gravity in ft/(sec*sec) var v0 = 100;//initial velocity in ft/secvar h0 = 6;//initial height in feet var tInc = 0.25;//calculation interval in seconds//Declare and initialize working variables var t = .0001;//current time in secondsvar h = h0;//current height in feet //The following variable is used to insert spaces in// the output display. var sp = "&nbsp;&nbsp;&nbsp;&nbsp;" //Compute and display various values for as long as the// height of the projectile is above the ground. while(h>0){ //This is the general equation for the height of a// projectile under the influence of gravity in a // vacuum.h = h0 + v0*t +0.5*g*t*t; //Display the information for this iterationdocument.write( "t = " + t.toFixed(2) + " seconds" + sp +" h = " + h.toFixed(1) + " feet" + sp + "</br>"); //Increment the time for the next iteration.t = t + tInc; }//end while loopdocument.write("End Script");</script></body></html>```

Screen output

The text shown in Figure 4 should appear in your browser window when you open the html file in your browser.

Figure 4 . Screen output for Listing #1.
```Start Script t = 0.00 seconds h = 6.0 feett = 0.25 seconds h = 30.0 feet t = 0.50 seconds h = 52.0 feett = 0.75 seconds h = 72.0 feet t = 1.00 seconds h = 89.9 feett = 1.25 seconds h = 105.8 feet t = 1.50 seconds h = 119.8 feett = 1.75 seconds h = 131.7 feet t = 2.00 seconds h = 141.6 feett = 2.25 seconds h = 149.5 feet t = 2.50 seconds h = 155.4 feett = 2.75 seconds h = 159.2 feet t = 3.00 seconds h = 161.1 feett = 3.25 seconds h = 160.9 feet t = 3.50 seconds h = 158.8 feett = 3.75 seconds h = 154.6 feet t = 4.00 seconds h = 148.4 feett = 4.25 seconds h = 140.2 feet t = 4.50 seconds h = 130.0 feett = 4.75 seconds h = 117.7 feet t = 5.00 seconds h = 103.5 feett = 5.25 seconds h = 87.2 feet t = 5.50 seconds h = 69.0 feett = 5.75 seconds h = 48.7 feet t = 6.00 seconds h = 26.4 feett = 6.25 seconds h = 2.1 feet t = 6.50 seconds h = -24.2 feetEnd Script```

what is the stm
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
what does nano mean?
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
how did you get the value of 2000N.What calculations are needed to arrive at it
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