Free Body Diagram - Brain Waves.avi
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- Опубликовано: 17 окт 2024
- Free body diagrams are important tools for solving statics and strength of materials problems. If you can draw the free body diagram correctly, you are well on your way to solving the problem. Fortunately, they are easy to understand. I show a couple examples of free body diagrams and what they can tell you.
These videos helped me so much when I was baffled by statics at class! Thank you for these videos.
That circle you draw is top.
Nice shirt, it remind me when i was studying higher math in Singapore Polytechinc & trying very hard to understand the curve...
Hey, in the video, the instructor assumes that the linkage point with the roller will not experience a horizontal force. The rationale, is that if there were a force horizontally there, the pin would just roll left or right on the assumed frictionless rollers. But, the part that bothers me is the fact that because there is a rigid body between points 1 and 2, the roller would not be able to move to the left. If it tries to, the distance from 1 and 2 and the floor that the rollers are on would prevent the rollers moving left. That is, the rigid 1 to 2 member is essentially tracing the radius of a circle as you move left. Therefore, shouldn't we assume a horizontal force at the rollers, due to the floor and compressive force from rigid member 1 to 2?
Also, if during the calculation it turns out that there is a horizontal force pushing the roller to the right, there would be a moment from that force around pin 1.
I understand that the assumption is a static problem, but I think that for the sake of calculation, we have to assume that there is a horizontal force at the point of the roller.
Your shirt is pure awesome.
omg where'd you get that shirt?! LIKE :)
I don't think it reflects so much as it redirects.
Mythbusters confirmed you can blow your own sail. When the wind from the fan reflects back off the sail, it creates a net trust, moving the boat. watch?v=uKXMTzMQWjo