Guide with Forces, Motion, Newton's Laws & Momentum

[blaziken's_charizard]

I'd like guidelines on how to go about my assignment. I don't need the answers to the quetions, but rather an explanation on what should be in the answer. Below is the assignment, I need help with the bolded part of the quote and nothing else. Thanks alot! The ictalized parts are what I'm done with.

Title:
Momentum

Aim:
To find the external force acting on a system

Theory
??

Materials and apparatus
A tennis ball
a stop watch with accuracy to 0.01s
a tape measure
and if possible a pool stick cut I am sure we will be able to substitute something.

Method.
1. Mark a straight line alone a floor in a relatively large room
2. Along that line, mark an x every 15cm
3. Place the ball at one end of the line and with a stick or something to that effect, push it with a suitable force
4. Time how long it takes to complete every 15cm interval until the ball stops
5. Repeat the above 4 more times
6. Place the data into the table below
7. Find the mass of the ball
8. Do calculations
9. Plot a graph – velocity against cumulative time

Results
Distance interval /m Exp I – t/s Exp 2 –t/s Exp 3 – t/s Exp 4 –t/s Exp 5 –t/s Ave t/s Velocity C. time
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35



Discussion
What is a force?
Is there a force being applied here, if yes, what?
Explain the rationale of your method
Explain applications on knowing the force being applied
State sources of error, limitations and precautions
Explain what is going on in relation to Newton’s first and second law of motion – including momentum
Explain how this proves Aristotle’s law wrong
Any other business that you may see fit

Conclusion
The value of the retarding force acting on the tennis ball is _______N

 

[hage567]

What do you think? You didn't offer your opinion on what you think should be there. Is this the first time you've written a lab report? Those are pretty specific questions, so that makes it fairly straightforward. The point of the discussion is to explain the results in terms of the laws you are investigating (do they agree? why/why not?) and to show you understand what's going on. Just answer the questions and explain your reasoning. Read your textbook for relevant material. I'm sure you must have some ideas about your sources of error/limitations since you were the one taking the measurements. Explain what they are and what impact they may have had on your experiment.

 

[m2003]

.

Dear student,

Thank you for your inquiry. I am happy to guide you on your assignment regarding forces, motion, Newton's Laws, and momentum.

Firstly, let's discuss the theory behind this experiment. Momentum is defined as the mass of an object multiplied by its velocity. In other words, it is the measure of an object's motion. The aim of this experiment is to find the external force acting on a system, in this case, a tennis ball. This external force is the force that causes the ball to move and eventually stop. By measuring the time it takes for the ball to stop at different distances, we can calculate the force acting on the ball.

Now, let's move on to the materials and apparatus needed for this experiment. As mentioned, you will need a tennis ball, a stop watch with an accuracy of 0.01 seconds, a tape measure, and a pool stick (or any suitable substitute). These materials will help us accurately measure the time and distance of the ball's motion.

Next, let's discuss the method for this experiment. The first step is to mark a straight line on the floor of a large room. This will serve as the distance for the ball to travel. Then, mark an x every 15cm along the line. Place the ball at one end of the line and push it with a suitable force using the pool stick. Time how long it takes for the ball to complete each 15cm interval until it stops. Repeat this process 4 more times and record the data in a table. Finally, find the mass of the ball, do the necessary calculations, and plot a graph of velocity against cumulative time.

Moving on to the discussion, let's address the questions provided in the assignment. Firstly, a force is any interaction that causes an object to accelerate or change its motion. In this experiment, the force being applied is the force from the pool stick that causes the ball to move. The rationale behind this method is to measure the time it takes for the ball to stop at different distances, which will allow us to calculate the external force acting on the ball. Knowing the force acting on an object can have various applications, such as in engineering or sports.

There are several sources of error and limitations in this experiment. For example, the force applied by the pool stick may not be consistent, and there may be friction between the ball and the floor, which can affect the results. Preca