A car is parked
$10\phantom{\rule{2pt}{0ex}}\mathrm{m}$ from home for 10 minutes. Draw a displacement-time, velocity-time and acceleration-time graphs for the motion. Label all the axes.
A bus travels at a constant velocity of
$12\phantom{\rule{2pt}{0ex}}\mathrm{m}\xb7\mathrm{s}{}^{-1}$ for 6 seconds. Draw the displacement-time, velocity-time and acceleration-time graph for the motion. Label all the axes.
An athlete runs with a constant acceleration of
$1\phantom{\rule{2pt}{0ex}}\mathrm{m}\xb7\mathrm{s}{}^{-2}$ for
$4\phantom{\rule{2pt}{0ex}}\mathrm{s}$ . Draw the acceleration-time, velocity-time and displacement time graphs for the motion. Accurate values are only needed for the acceleration-time and velocity-time graphs.
The following velocity-time graph describes the motion of a car. Draw the displacement-time graph and the acceleration-time graph and explain the motion of the car according to the three graphs.
The following velocity-time graph describes the motion of a truck. Draw the displacement-time graph and the acceleration-time graph and explain the motion of the truck according to the three graphs.
This simulation allows you the opportunity to plot graphs of motion and to see how the graphs of motion change when you move the man.
In this chapter we will look at the third way to describe motion. We have looked at describing motion in terms of graphs and words. In this section we examine equations that can be used to describe motion.
This section is about solving problems relating to uniformly accelerated motion. In other words, motion at constant acceleration.
The following are the variables that will be used in this section:
The questions can vary a lot, but the following method for answering them will always work. Use this when attempting a question that involves motion with constant acceleration. You need any three known quantities (
${v}_{i}$ ,
${v}_{f}$ ,
$\Delta x$ ,
$t$ or
$a$ ) to be able to calculate the fourth one.
Read the question carefully to identify the quantities that are given. Write them down.
Identify the equation to use.
Write it down!!!
Ensure that all the values are in the correct unit and fill them in your equation.
Calculate the answer and fill in its unit.
Interesting fact
Galileo Galilei of Pisa, Italy,
was the first to determined the correct mathematical law foracceleration: the total distance covered, starting from rest, is
proportional to the square of the time. He also concluded thatobjects retain their velocity unless a force – often friction –
acts upon them, refuting the accepted Aristotelian hypothesis thatobjects "naturally" slow down and stop unless a force acts upon
them. This principle was incorporated into Newton's laws of motion(1st law).
Finding the equations of motion
The following does not form part of the syllabus and can be considered additional information.
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
what is the Synthesis, properties,and applications of carbon nano chemistry
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?