| Welcome to the ShellCore Command Forums. We hope you enjoy your visit. You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free. Please note: The Zetaboard hosting service which hosted our forum will soon be shut down due to a migration to redirect all their forums to Tapatalk If you're already a member please log in to your account to access all of our features: |
| Deceleration's 100 math problems thread!; Absolute torture... | |
|---|---|
| Tweet Topic Started: Aug 4 2011, 04:22 AM (5,629 Views) | |
| Deceleration | Jan 10 2013, 10:02 PM Post #201 |
![]()
Coreling Conquerer
![]()
|
This question actually requires no calculus, only a couple physics equations relating force and friction. |
![]() |
|
| Brayzure | Jan 14 2013, 11:18 AM Post #202 |
![]()
The Analytic Commander
![]()
|
Regardless, physics formulas pop up every now and again in Calc. |
![]() |
|
| Deceleration | Jan 14 2013, 07:34 PM Post #203 |
![]()
Coreling Conquerer
![]()
|
Only certain formulas, and quite general ones at that. |
![]() |
|
| Brayzure | Jan 15 2013, 11:17 AM Post #204 |
![]()
The Analytic Commander
![]()
|
But if they do the job, then so what? |
![]() |
|
| Deceleration | Jan 15 2013, 07:31 PM Post #205 |
![]()
Coreling Conquerer
![]()
|
They only do the job if said job happens to be a very particular type of job. And my questions do no fit particular types of jobs. |
![]() |
|
| Shell-Core | Sep 12 2013, 02:25 PM Post #206 |
|
Heavy Assault Frigate
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Hmm... Seems like that this thread has been inactive for a couple of months now. |
![]() |
|
| Deceleration | Sep 12 2013, 06:28 PM Post #207 |
![]()
Coreling Conquerer
![]()
|
Out of boredom, let's "solve" question 19. I tell you the car's initial and final velocities, and the time it takes to change the velocity. You calculate acceleration, (velocity final minus velocity initial, all divided by time) while according to Newton's second law the sum of all forces equals mass times acceleration, F=ma. The only force acting on the car in the x (horizontal) direction is the force of friction, which equals mu (coefficient of friction) times normal force (FN). As the car experiences no acceleration in the vertical direction, FN=Weight, or W. W=mass times acceleration. Mu therefore equals friction divided by FN, or friction divided by weight. Friction equals mass times acceleration you solved for earlier, so mass cancels out (which is why I did not give the car's mass) and the answer is the car's acceleration divided by g, or gravitational acceleration, usually given as 9.8 m/s2. Solve for the car's acceleration (or deceleration, since it's slowing down) and you can find the coefficient of friction easily. So you see, I used zero calculus. Don't use calculus when it's not needed, derp. |
![]() |
|
| 1 user reading this topic (1 Guest and 0 Anonymous) | |
| « Previous Topic · Capitol Platforms (General Discussion) · Next Topic » |












11:50 PM Jul 10