10,391 reputation
21844
bio website
location United States
age
visits member for 4 years, 6 months
seen 1 hour ago

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.


May
12
revised Angular momentum with respect to the centre of mass
added 116 characters in body
May
12
answered Angular momentum with respect to the centre of mass
May
12
comment Angular momentum with respect to the centre of mass
And Derivation of Newton-Euler equations of motion
May
12
comment Angular momentum with respect to the centre of mass
Related Deriving $\vec{T} = \bar{I} \vec{\alpha} + \vec{\omega} \times \bar{I} \vec{\omega}$
May
11
comment Weight distributions
What do you think? Is each leg supporting your entire weight, or only half each?
May
10
comment What causes a car's velocity to follow the front wheels' direction?
At best you can simulate a tricycle. The get anywhere near realism for a car there are so many more factors that you need to consider.
May
10
comment Rotational motion of a cylinder
What does $\alpha$ measure to?
May
9
comment What is the Vector/Cross Product?
I use $[r\times]$ as a matrix operator to apply the parallel axis theorem in mechanics $$I_A = I_B - m [r \times] [r \times]$$. See examples here and here
May
9
revised What is the Vector/Cross Product?
edited body
May
8
revised What is the Vector/Cross Product?
added 2 characters in body
May
8
answered What is the Vector/Cross Product?
May
8
comment What is the Vector/Cross Product?
See en.wikipedia.org/wiki/…
May
8
revised What is the Vector/Cross Product?
added 74 characters in body
May
8
comment Can adding weight to something make it tilt slower?
The caveat is that at some point the contact is going to start slipping, and later it might separate altogether. This changes the rotational speed profile as those transitions occur at different angles for each situation.
May
6
answered Analysis of motion of a body moving on a string?
May
6
comment Formula for balance with three arms?
possible duplicate of Calculating torque in 3D?
May
6
comment Where do forces point in an equilibrium system
Free Body Diagrams are indeed very helpful. It should be the first thing one does when facing an mechanics problem.
May
5
comment Is force exerted by Earth different for different mass?
Hint: Weight!
May
4
comment Definition of Force Using Momentum
Over a finite time span, yes the time average force can be used.
May
4
answered Where do forces point in an equilibrium system