2006-12-11 23:13:24 · 5 answers · asked by Lemonada 3 in Science & Mathematics ➔ Physics
The general equation we deal with in Newtonian mechanics is his 2nd law:
F(r,t)=m*r’’, where vector r(t) is 3-dimensional position of mass m at given time t, F(r,t) is vector of force acting on the mass m, while r’(t) is vector of velocity, r’’(t) is vector of acceleration. When F=0 we deal with his 1st law! All variety of problems is to solve this equation, remembering momentum and energy conservation laws. Be it satellite, pendulum or slow electric charges or sledding down a slope etc
2006-12-12 05:54:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Your question is rather vague, but when working with vector quantities like force, velocity, acceleration, etc. you fix a direction to be positive in relation to the vectors you are working with. Try to give more concrete examples for more concrete answers.
2006-12-12 07:22:22 · answer #2 · answered by Paleologus 3 · 0⤊ 0⤋
The acceleration will be always in the direction of applied force.
2006-12-12 08:56:36 · answer #3 · answered by Pearlsawme 7 · 0⤊ 0⤋
So you want one single answer to the entire branch of dynamics. Hm. I'd like to see that answer.
2006-12-12 07:22:49 · answer #4 · answered by Totally Blunt 7 · 0⤊ 0⤋
Its all relative.
2006-12-12 07:41:10 · answer #5 · answered by dewhatulike 5 · 0⤊ 0⤋