(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

You can find the questions, and relevant diagrams for each within the attached image

2. Relevant equations

Force Equations

[tex]ƩF=ma[/tex]

[tex]f_k=μ_kN[/tex]

Work Equations

[tex]W=Fs[/tex]

(in this case, s=h)

[tex]W_{tot}=\frac{1}{2}mv^2-\frac{1}{2}mv_0^2[/tex]

My Questions (these are also written on the diagrams):

-Looking at the diagram with the black background, have these tensions been identified correctly? If so, how would I try to solve for T2, given I've created all of my force equations?

-looking at the attachment that has two problems, with forces identified, and specific areas of interest highlighted:

-Have I identified my forces correctly?

-In question 1, it says block m2 just "drops" a distance h, since it says nothing about

the velocity being constant, should I assume that there is an acceleration in the

system?

-In question 2, it says that block c descends with a constant velocity, can I say that

block A and block B also move through the system at a constant velocity?

-When finding the work done on each individual body in both questions, I forgot that

none of the tensions are given to me. Would I simply set up force equations in order

find each tension?

It seems I have most of the concepts understood to a certain degree, but their are certain things that tend to trip me up quite a bit, any help regarding these question would be greatly appreciated.

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# Homework Help: A Few Questions on Tension, and Some Work

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