Recent content by Jim Newt

Hey thanks buddy! I went through it again and ended up with the correct answer. Its always the tidbit math that gets me...

Ok, maybe my whole method is bunk. Given the standard beam deflection equations, how would you solve for Rb?

Homework Statement In this problem, I'm trying to solve for the Reaction, Rb Homework Equations I believe for the distributed load, the deflection equation would be: v = (-qx/24EI) * (L^3 - 6Lx^2 + x^3) For the support, Rb, the deflection equation could be: v = (-Pbx/6LEI) *...

All right, how about this: The small beam on the right is subject to pure bending, with a square cross section and the larger beam on the left is now just a wall that the small beam is attached to. So for a predicted failure model: σmax = 6M / (h^3) where we could set σmax = yield stress of...

What if you treat the small beam member to the right as a cantileaver beam? Any thoughts?

See attached for a picture. I want to calculate the load that will produce a failure at the point in the picture. If I know all the required dimensions and material properties, how do I go about calculating the load that will produce failure? Thanks! Jim

I'm trying to come up with a mechanics project idea and I'd like some suggestions. I have a mass that is oscillating back and forth and it can be thought of as an inverted pendulum. I also took a video of the moving mass and found its x and y coordinates and velocity as its moving back and...

I'm working on a problem that analyzes vertical jump kinetics. I have a data file that has force plate data and corresponding time steps when a person jumped straight up and then landed on a force plate. I also have the vertical distance that the person jumped. I want to calculate: 1. The...

Shear and moment diagram--Need help! Homework Statement On the attached question: Fpy = 10 N Ffy = 10 N Mp = 0.15 Nm Mf = 0.45 Nm Homework Equations Draw the shear and moment diagrams. The Attempt at a Solution If you look at the answer I posted, I believe the shear...

Homework Statement The attached jpeg shows a force plate with four measured masses each corresponding to a corner node. Calculate the center of mass on the force plate. Homework Equations I think they would be: xcg = (x1M1 + x2M2 + x2M3 + x4M4) / (M1 + M2 + M3 + M4) The ycg...

Homework Statement For the attached problem, I'm asked to solve for X Homework Equations Sum Fx = 0 Sum Fy = 0 Sum M = 0 The Attempt at a Solution Sum Fx = 0 = No forces in x Sum Fy = 0 = F1 + F2 - F3 = 0 Sum M = 0= (F1)(X) - (F2)(L-X)

So here's the corrected answer: P = [exp(-B1/kT)+exp(-B2/kT)+exp(-B3/kT)+exp(-B4/kT)] / [exp(-B1/kT)+exp(-B2/kT)+exp(-B3/kT)+exp(-B4/kT)+exp(-UB/kT)] Is this correct? Thanks greatly, Jim

P = exp(-B/KT) / [exp(-B1/KT) + exp(-B2/KT) + exp(-B3/KT) + exp(-B4/KT)+exp(-UB/KT)] F95toli, How does this look? Thanks, Jim

F95toli, Thanks again for all your help. So based on all the great info that you've provided me, here's what I think the final solution would be: 4/5 = exp(-UB/KT) / [exp(-B1/KT) + exp(-B2/KT) + exp(-B3/KT) + exp(-B4/KT)] Where UB= energy state of Unboud B!, B2...etc = engergy states...

Hi F95toli, Thanks greatly for your suggestions. So do I treat the B1, B2,...etc. and UB as energy states? What do I do with the KbT? So to start, I would take out the Pb and set Pa=1? z=5? I'm lost on this one...