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location United States
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visits member for 4 years, 7 months
seen Jul 1 at 22:04

Started programming on a ZX spectrum in the 80's and have moved through Assembly, Turbo Pascal, C++, C#, Fortran. My main area of focus is engineering and scientific computing like numerical methods and 3D graphics.


Jun
11
revised Force applied off center on an object
added 10 characters in body
Jun
10
comment Is the Earth the center of the Solar System?
In mechanics it makes things much simpler to evaluate your equations of motion on the center of mass.
Jun
10
answered Get coefficient of friction given mass, forward force, and acceleration?
Jun
10
comment Get coefficient of friction given mass, forward force, and acceleration?
Use $g=9.80665$ which is the SI standard value.
Jun
10
answered Two masses attached to a fixed vertical spring
Jun
9
answered Angular acceleration - radial & tangential
Jun
9
comment Angular acceleration - radial & tangential
See derivation here: physics.stackexchange.com/a/185246/392
Jun
9
answered How can tangential acceleration from a radial force be explained?
Jun
7
comment Newtons Cradle, Collision Theory
Yes, $J$ is an impulse. It has units of $\mbox{Newton Second}$. A very big force acting over a small amount of time multiples together make a not so big impulse $J$.
Jun
7
revised Newton's law of restitution
added 1 character in body
Jun
6
awarded  Good Answer
Jun
6
revised Newton's law of restitution
added 95 characters in body
Jun
6
answered Newton's law of restitution
Jun
3
comment Spring Stiffness Calculation Problems
I would change the title to "dynamic spring calculation" or something similar in order to get more interest.
Jun
2
comment Moment of inertia tensor calculation
Well he did need the parallel axis theorem becasue it is used in the accepted answer.
Jun
2
comment Moment of inertia tensor calculation
versor=vector right?
Jun
2
comment Moment of inertia tensor calculation
What is an ord? A sketch might help here. Also I suppose you know about the parallel axis theorem.
Jun
2
answered Support reaction on rotating object
Jun
1
comment Elastic collision of rotating bodies
You shouldn't be adding linear to angular momentum. They have different units. The correct relationship is $$\vec{L}_A = \vec{L}_B + \vec{r}_{AB} \times \vec{P}$$ See physics.stackexchange.com/a/183650/392
Jun
1
comment Paradox in the two block problem
possible duplicate of Friction forces and sliding slabs