Write NEAT please, NO CURSIVE... 1.) Take a look at the following graph of a bal

Question

Write NEAT please, NO CURSIVE...

1.) Take a look at the following graph of a ball in motion. Given your understanding of Distance - Time graphs, displacement, and origin describe the ball's motion.

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Simulation #2
Problem: If our man starts at the origin with an initial velocity of 0 m/s, and accelerates at 1 m/s2, how long will it take him to get home?

Copy and paste to get to the website..

If you are having trouble, after installing JAVA, try copying and pasting the following link into a new window:

http://phet.colorado.edu/sims/moving-man/moving-man_en.jar

Reset the simulation using the "Reset All" button. This time have the man accelerate at 1 m/s2 . You will enter a "1" into the acceleration text box. Run the simulation and pause it with the man as close to the house as possible (this may take a few tries). Copy a screenshot of this simulation and paste it into your document then answer the following questions:

Q5. Answer each part of this question after running each of the two simulations above.

Approximately how long did the man get home in the second simulation?

Describe any differences in how the man moved that you saw in each of the two simulations.

Describe any difference in the position plot between these two simulations. Explain why it is different.

Describe any difference in the velocity plot between these two simulations. Explain why it is different.

In the second simulation the man's initial velocity was 0 m/s compared to 1 m/s in the first simulation. Even though the man was not moving at the beginning of the second simulation he arrived home faster. Explain in your own words how this happens (hint: remember to mention the velocity and acceleration in your answer).

Explanation / Answer

1. For the first 3 seconds, the position of the ball is constant at 5m. This means that the velocity is zero for the first 3 seconds and acceleration is also zero.

For t=3 to t=8 seconds, the position of the ball decreases linearly that is with a constant slope.

Change in position / change in time = -5m/5s = -1m/s

In this period, the velocity is constant and equal to -1m/s.

Accelation is zero.

For t=8 to t=10s, the position is zero, velocity is zero and acceleration is zero.

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