Recent content by joshncsu
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Elasticity / Diving Board problem
Thanks for your help but I'm still confused. I've searched my book and I don't see that formula. I would try it anyway but I don't know what b and t are. I did find this: Plane or slab, about edge (M = mass, a = length from axis): I = 1/3 Ma^2 I know that a = 2.2, but the original mass is...- joshncsu
- Post #5
- Forum: Introductory Physics Homework Help
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Elasticity / Diving Board problem
I'm having trouble finding the correlation between I (inertia) and k (spring constant). The formulas that I have thus far (in the textbook) for either are: \vec{F}_{sp} = k \Delta x \hspace{1in} I = \sum mr^2 Note: Momentum or energy has not been covered yet.- joshncsu
- Post #3
- Forum: Introductory Physics Homework Help
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Elasticity / Diving Board problem
Homework Statement The board's left end is fastened to a fixed support by a connection that is free to pivot. The board is supported to its middle on another fixed support point. A diver of mass 60 kg stands at the end of the board. (ignore the mass of the board for this problem) The...- joshncsu
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- Board Elasticity
- Replies: 5
- Forum: Introductory Physics Homework Help
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Problem dealing with Equilibrium & Torque
Thank you for the hints! Your 2nd hint is what led me to figure it out, your first hint made me realize that I messed up showing my work in Latex (sorry if that confused you). Anyway, I got 4 m when solving for x, which looks right!- joshncsu
- Post #3
- Forum: Introductory Physics Homework Help
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Problem dealing with Equilibrium & Torque
Homework Statement A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts. A 20 kg boy starts walking along the beam. How close can he get to the right end of the beam without it tipping? The left post under the very left end of the beam, and the first post is 3.0 m to...- joshncsu
- Thread
- Equilibrium Torque
- Replies: 4
- Forum: Introductory Physics Homework Help