Tonight's homework is as follows:
A stationary 15 kg object is located on a table near the surface of the earth. The coefficient of kinetic friction is 0.25. A horizontal force of 40 N is applied to the object.
Draw a free body diagram with the forces to scale.
Determine the force of friction.
Determine the acceleration of the object.
If you wanted to watch the mythbusters again, here it is.
NECHS Physics Calendar
Wednesday, December 12, 2012
Friday, November 30, 2012
Weekend Homework & More on Mercury
This is your homework:
Do the multiple choice questions 1-34.
This will be due next Friday, but that doesn't mean do it Thursday night. Pace yourself. There are 7 days in a week, try 5 multiple choice problems a night so that if you have questions, you can either post them here or ask them in class.
If you want to read more about the discovery of ice water on Mercury, here's a link to NASA's press release.
Do the multiple choice questions 1-34.
This will be due next Friday, but that doesn't mean do it Thursday night. Pace yourself. There are 7 days in a week, try 5 multiple choice problems a night so that if you have questions, you can either post them here or ask them in class.
If you want to read more about the discovery of ice water on Mercury, here's a link to NASA's press release.
Wednesday, November 28, 2012
FBD Quiz Tomorrow!!!
In preparation for the quiz tomorrow, do Problem 37 in the chapter problems. Here is the actual problem:
I have it transcribed here:
A hockey puck slides on a rough horizontal surface with a constant velocity. Draw a free-body diagram for the puck and compare the magnitudes and the directions of all the forces exerted on it.
I have it transcribed here:
A hockey puck slides on a rough horizontal surface with a constant velocity. Draw a free-body diagram for the puck and compare the magnitudes and the directions of all the forces exerted on it.
This is how I want every problem done on the quiz. |
Tuesday, November 27, 2012
More FBD Homework and Quiz Thursday!!!
I posted the homework last night at 7:30, so I would like to give you another chance to complete the homework. I will be checking both Problems 35 and 36 tomorrow. That means tonight's homework is numbers 35 and 36:
1.
A crane lifts a load at a constant speed.
Draw a free-body diagram for the load and compare the magnitudes and directions
of the all forces.
2.
A crate is accelerated at a constant rate
along a rough horizontal floor. Draw a free-body diagram for the crate and
compare all the forces exerted on the crate.
Monday, November 26, 2012
Tonight's homework is to make an FBD for the following problem:
A crane lifts a load at a constant speed. Draw a free-body diagram for the load and compare the magnitudes and directions of the all forces.
We will go over this tomorrow.
This is number 36 on the Chapter Problems.
A crane lifts a load at a constant speed. Draw a free-body diagram for the load and compare the magnitudes and directions of the all forces.
We will go over this tomorrow.
This is number 36 on the Chapter Problems.
Wednesday, November 14, 2012
The Next Unit: Dynamics!!!
Tomorrow we will be starting a new unit, Dynamics. This deals with forces and vectors, so its a lot of geometry, but it will use the formulas for kinematics as well. Here is the video we will be watching tomorrow.
We will be doing a few virtual labs on this as well.
All the homework will be from the following documents:
Multiple Choice Practice
Free Response Practice
For tonight (Thrsday night), the homework is Multiple Choice 1-6.
We will be doing a few virtual labs on this as well.
All the homework will be from the following documents:
Multiple Choice Practice
Free Response Practice
For tonight (Thrsday night), the homework is Multiple Choice 1-6.
Wednesday, October 24, 2012
Quiz Tomorrow!!!
Tomorrow's quiz will take up THE WHOLE PERIOD!!! We will start as soon as we get in.
There is homework on mixed equations:
Chapter Problems: 104-117
If you need the transcript of what here is saying, you can find it here.
I will not be providing calculators!!!
Bring your own calculator!!!
You will need it!!!
There is homework on mixed equations:
Chapter Problems: 104-117
Practicing these will help you with your quiz tomorrow.
Watch this video before the test. It is great and explains things well:
Watch this video before the test. It is great and explains things well:
If you need the transcript of what here is saying, you can find it here.
Subscribe to:
Posts (Atom)