Recent content by KLdude

Ok, I did my project and we got a C on it. My teacher gave me an option of either keeping this grade or redoing it and fixing our solution on horsepower. We calculated the horsepower, however he said we solved it for 0-160. I believe what we need to do is calculate it from 0-100 and then from...

Just wanted to say thanks for all the help. Invinc1ble, Car 2 began accelerating long before the 1st car went off the bridge. Does this still make it possible? Just curious, I'm done with the project.

Thanks for the suggestions! If anyone has anymore please let me know.

I have a special effects physics project that I'm doing and I need some help. In this movie, there's a scene where a part of the road is elevated to become a ramp. Two cars who are racing approach this ramp. Car 1 is in the lead and Car 2 is behind him. Car 1 goes off the ramp and Car 2...

Ok now I understand how you got that. However I don't understand what I can do with that equation. I don't have the mass so I can't find the Fs max?

Chen, I am a little confused. Ok I have the 1/2mass times Velocity squared minus 1/2 mass initial velocity squared equals acceleration times distance. I don't understand how you got that equation I just said to equal Fsmax(x)? Could you possibly explain in greater detail? Thanks again.

That's what I'll end up doing. Since I'm limited in what I can do, I'm pretty much just going backwords. As long as I attempt this I think it'll be ok. Thanks for all your help Chen.

Chen, we actually can't. We just started on work and energy as it's right after Forces. My teacher has requested that we don't use any of the work and energy stuff. However he did suggest to go back and solve for one of the given values. In my case that'd be velocity or distance or possibly...

Thanks Chen, I did forget to do that. What I mean by proving the problem is I need to use a different equation or take a different path of solving to prove that this answer is correct. It's part of the presentation requirements. Again everyone has been a lot of help and I understand this a great...

Alright I followed the steps and got coefficient of friction = -145.5/-9.81 = 14.83 Is this correct? Thanks Chen, the help was excellent. If this is correct could someone also help me with a way to prove this problem that would be awesome! Thanks again!

Alright that makes sense, but I'm still struggling on solving this problem. I know I'm going to need the equation coefficient of friction = force of friction/force of N. But i don't know how to solve it. Thanks!

Couple of more questions. Chi Meson- what is the frictional force formula? HallsofIvy- I understand how to find the acceleration, I believe I got -145.5. Is this correct? However I don't understand the second paragraph of your response, could you please help me understand it better...

I'm struggling on a presentation problem in my physics class. The problem reads: A crate containing machine parts sits unrestrained on the back of a flatbed truck traveling along a straight road at a speed of 80 km/h. The driver applies a constant braking force and comes to stop in a distance...