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

Draw and label the free body diagram of a block on a plane inclined 30 degrees from the horizontal. There is friction and the block is stationary. The magnitues of the vectors must be correctly scaled and the directions correct.

And then my other question is how to find velocity from a positon vs time graph at a given time.

2. Relevant equations

3. The attempt at a solution

http://img201.imageshack.us/my.php?image=inclinedc5.jpg

Here's my free body diagram. I guess i just want to see what the magnitudes should be. Should Fk be just slightly bigger than mgsinO since it is stationary? Also N should be equal to Fperpindicular right? And how big should mg be?

For the second part I don't understand how to find the velocity at a given point. Like if i'm supposed to find the velocity at say 2 seconds, would i just try to find the slope between 1.9 and 2.1 or what?

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# Homework Help: Free body diagram, inclined plane, and finding V from x vs t graph

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