Recent content by J.T.

Sorry for sounding like an idiot, but I'm not getting it. I tried solving for a as you said, but I keep getting the wrong answer Maybe I'm just really bad at calculating numbers... Thank you for the help anyways!

Sorry for sounding like an idiot, but I'm not getting it. I tried solving for a as you said, but I keep getting the wrong answer Maybe I'm just really bad at calculating numbers... Thank you for the help anyways!

I have been stuck on this problem for so long... It's seriously driving me insane. The problem: An incline plane that makes an angle of 28 degrees to the horizontal is mounted on wheels. A small block of mass m=0.9kg rests on the plane, held there by a coefficient of static friction...

My bad. The program refused to take 0.0012s, but it took 0.00121s. I guess I just needed to be a little more accurate...(--;) I'm such an idiot. Anyway, thank you for all the help! Now I have an exam to look forward to on Friday :)

I keep getting the wrong answer...Grr. :frown: Earlier, I determined that a=8167.5m/s^2 and f=5717.25N. The online program I'm using told me that my answer was correct (for force), so I proceeded to solve for time. No matter how many times I plug the numbers into the equation, I keep...

...And yet I run into another problem. After I find the force it asks me, "what time does the force act in bringing the ball to rest?" I realize I'm supposed to use one of the kinematic equations, so I've been plugging in numbers for a and x, etc. The thing is, all of my solutions are...

Thank you! I was finally able to solve it...

Hello! I was hoping I could receive some help with a certain problem. A 0.7kg tennis ball is dropped from rest at a height of 5m onto a hard floor. --From that, I was able to determine that the final velocity is 9.9m/s. The part I'm having trouble with is this: A flash photograph...