Hello, in today's physics class we corrected a number of problems including #6 - 8 on the worksheet given to us on Monday, Newton's Laws of Motion, as well as the questions assigned yesterday from the greed book ( # 1, 5 & 7). We were also given a short review covering everything that would be on tomorrow's test. All of this has already been uploaded to the blog by Ms. K. The remainder of the class was given to us to study and review our notes. That was pretty much it.
*REMINDER: Test on "Dynamics" tomorrow, Thursday, December 13, 2007. Don't forget to study.
The next scribe is Richard (:
Showing posts with label dynamics. Show all posts
Showing posts with label dynamics. Show all posts
Wednesday, December 12, 2007
Tuesday, December 11, 2007
Dec 11, 2007
Today in physic's class, we corrected our questions #1-6 on the sheet we got yesterday & we got a new work sheet, corrected it in class. The answers are posted below by Ms. K. She assigned questions # 1, 5 ,7 pg 105- 106 in the green book. If you weren't here today i have posted the questions below, we will correct it tomorrow in class along with the questions 6- 10 that you are to have finished by tomorrow.
Problems # 1, 5, 7 Pg 105-106
1.) An 873-kg dragster, starting from rest, attains a speed of 26.3m/s in .59s
a.) Find the average acceleration of the dragster during this time interval.
b.) What is the size of the average force on the dragster during this time interval?
c.) Assume the driver has a mass of 68kg. What horizontal force does the seat exert on the driver?
d.) Is the driver's mass in part C an inertial mass or gravitational mass?
5.) After a day of testing race cars, you decide to take your own 1550-kg car onto the test track. While moving down the track at 10m/s, you suddenly accelerate to 30m/s in 10s. What is the average net force that you applied to a car during the 10-s interval?
7.) A force of -9000N is used to stop a 1500-kg car traveling at 20m/s. What braking distance is needed to bring the car to halt?
the blog for tomorrow is Kimberley
REMEMBER TEST ON THURSDAY DECEMBER 13, 2007
Problems # 1, 5, 7 Pg 105-106
1.) An 873-kg dragster, starting from rest, attains a speed of 26.3m/s in .59s
a.) Find the average acceleration of the dragster during this time interval.
b.) What is the size of the average force on the dragster during this time interval?
c.) Assume the driver has a mass of 68kg. What horizontal force does the seat exert on the driver?
d.) Is the driver's mass in part C an inertial mass or gravitational mass?
5.) After a day of testing race cars, you decide to take your own 1550-kg car onto the test track. While moving down the track at 10m/s, you suddenly accelerate to 30m/s in 10s. What is the average net force that you applied to a car during the 10-s interval?
7.) A force of -9000N is used to stop a 1500-kg car traveling at 20m/s. What braking distance is needed to bring the car to halt?
the blog for tomorrow is Kimberley
REMEMBER TEST ON THURSDAY DECEMBER 13, 2007
Monday, December 10, 2007
Monday of December, I dunno the date
Jajajaja.
Today we was like, we got them tests back for some reason, I didn't know we were supposed to hand them back for anything. And then after that, we was doing them sheets you know, with the rocks and then we have to label each of the forces that were acting upon that piece of rock. And then the teacher lady gave us like these peices of paper with writing on it, I think she wants us to read those papers, I dunno don't ask me.
After that we got another piece of paper with writing on it and I think we were supposed to do them... It was about finding the net force and stuff, and to figure it out, we have to like use stuff learned in trigonomonomonemtree or something like that and the pythagorean theory... And remember to use like NORTH of EAST instead of NORTHEAST because NORTHEAST is apparently 45 degrees and so yeah, you'll get wrong and you'll phail at physics so don't do that. And then the teacher went and did some crazy stuff on the overhead but I was busy writing this stuff so I don't know what happened. Now it's home time and I have to go now byebye ttyl.
Scribe for tomorrow is jennifer
Today we was like, we got them tests back for some reason, I didn't know we were supposed to hand them back for anything. And then after that, we was doing them sheets you know, with the rocks and then we have to label each of the forces that were acting upon that piece of rock. And then the teacher lady gave us like these peices of paper with writing on it, I think she wants us to read those papers, I dunno don't ask me.
After that we got another piece of paper with writing on it and I think we were supposed to do them... It was about finding the net force and stuff, and to figure it out, we have to like use stuff learned in trigonomonomonemtree or something like that and the pythagorean theory... And remember to use like NORTH of EAST instead of NORTHEAST because NORTHEAST is apparently 45 degrees and so yeah, you'll get wrong and you'll phail at physics so don't do that. And then the teacher went and did some crazy stuff on the overhead but I was busy writing this stuff so I don't know what happened. Now it's home time and I have to go now byebye ttyl.
Scribe for tomorrow is jennifer
Wednesday, December 5, 2007
Newton's Second Law Lab
Hello fellow classmates,
i am SAM and i am scribing for today. First we started off by getting a hand out for a lab. The lab was based on Newton's Second Law. It's a two page handout with both the front and back. We had carts and weights and we had to observe the accelerations produced by varying forces on a given mass. The lab is to be finished by tomorrow or probably latest would be Friday. That's about all we did in physics, which was work on the lab. The next scribe will be AnhThi!
i am SAM and i am scribing for today. First we started off by getting a hand out for a lab. The lab was based on Newton's Second Law. It's a two page handout with both the front and back. We had carts and weights and we had to observe the accelerations produced by varying forces on a given mass. The lab is to be finished by tomorrow or probably latest would be Friday. That's about all we did in physics, which was work on the lab. The next scribe will be AnhThi!
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