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visits member for 4 years, 7 months
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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
26
comment How did Newton discover the universal law of gravitation?
So newton had a sense of gravity flux, and field strength?
May
25
comment Newtons Cradle, Collision Theory
Yes. I should condense them to $v_{impact} = v_2-v_1$
May
24
answered Object moving with 2 linear accelerations
May
24
answered $F=ma$, so if acceleration is zero the force must also be zero?
May
24
comment Finding the initial velocity of projectile
I edited the answer for the more general case.
May
24
revised Finding the initial velocity of projectile
added 394 characters in body
May
24
comment Finding the initial velocity of projectile
Yes. You are correct. I assumed vertical motion only.
May
24
comment Finding the initial velocity of projectile
He is asking for the initial velocity from the max. height. How is the range going to help here is it is not given?
May
24
comment Finding the initial velocity of projectile
I think this is the formulate for the range. OP is asking about max height.
May
24
answered Finding the initial velocity of projectile
May
24
comment Finding the initial velocity of projectile
What have you done? How have you approached this problem. What is your level of understanding of projectile motion?
May
22
awarded  Notable Question
May
22
comment Maximum angle for highway lane change
All season tires will have lower coefficient of friction compared to performance (summer) tires. A minimum of 0.85 can be assumed for most tires.
May
21
answered Maximum angle for highway lane change
May
21
comment Yaw angle calculation for a two-wheeled inverted pendulum
Hi @JJT. You can use math formatting by enclosing your expressions in $...$. See physics.stackexchange.com/help/notation. It will make your post much more readable.
May
21
comment Is rotational motion relative to space?
Is there an experiment we can do to confirm we are rotating about in the milky way? The bulk of matter around is on the milky way and Mach's principle may mean it would be very difficult to measure such rotation.
May
21
comment Is rotational motion relative to space?
Related What if the universe is rotating as a whole?
May
19
comment Resultant forces on system of particle is zero , we can have?
If you have a pure torque (two separated equal and opposite forces) then angular momentum (and hence energy) is not constant.
May
19
comment Friction on a body
Sometimes you must. Try sliding a pot over a hot ceramic stove and you see that the heat creates a low pressure area under the pot making it stick (i.e. increasing friction).
May
19
revised Area Moment of Inertia about y axis of i Beam
added 85 characters in body