Recent content by punyhuman92

Also let me know if the link works. Thanks

Homework Statement http://landau.physics.fsu.edu/capstick/teaching/2048C-Fall11/Final/Spring09.pdf Homework Equations U_g= mgh K.E=1/2mv^2 + 1/2Iw^2 U_gi=KE_f I=1/2MR^2 The Attempt at a Solution I got as far as far as d then realized that i didn't do anything to include the...

Thanks guys I got the answer :D a=(g(m_g-mu_km_r)/(m_r+m_g))

also the acceleration we're looking for is of the first mass.

Someone please?

Hey everyone, First of all, here is the applet so you can see what the problem looks like. http://session.masteringphysics.com/probhtml/applets/modatt2-14-4a.html I'm supposed to create an equation for acceleration; using m_1, m_2,Mu_k, and g. I'm not sure what the first step is...

Question: those suvat equations, are those used to find the average or instantaneous? What would I use to find inst. velocity vs avg velocity?

I still think each question is separate though i wish the question was more specific.

A question given by my professor, I have an exam in two hours and i procrastinated looking at his review sheet. i emailed him but i doubt he'll get back to me before the time of the test. (i've been studying our past quizzes/hw instead for the past week)

I thought a) and b) and c) where all different questions pertaining to the same problem and unrelated, fml you might be onto something.

I understand that, but velocity is equal to acceleration multiplied by time, but how do I find time? I feel like I am not given enough to solve the problem, i ended up with (t)(4.9m/s^2) as my velocity I don't have the displacement or distance, neither do i have the time. so how can i find the...

For C) For letter C is it simply 750m?

I know its early but can anyone else verify if the work I'm doing is correct? :(

I'm not sure how to find the average velocity. Unless all I have to do is V=at? In which case I get 31.64 m/s

For part b) I used the formula Vf^2-Vi^2=2a(\delta)x For the change in x I found the hypotenuse of the triangle, is that correct? or should I have used the 250m that was given? After plugging in the values I got 63.25 m/s for my instantaneous velocity.