In physics, how do you do equation of motion calculations? any tips or sites with help?

Answer 1

I like the fact you asked about an explanation of laws of motion, not a straight answer to a given question although the answer is really a bit of a biggy!.

The following equations are the basic ones used in most Newtonian physics motion calculations:
(^2 means squared so v^2 means v squared. * is multiply)

S=u*t+0.5*a*t^2
v^2=u^2+2*a*S
v=u+a*t

Where:
S=distance
u=starting velocity
v=ending velocity
a=acceleration
t=time


When you bring in forces and momentum you'll need the following:

f=ma
Kinetic energy e=0.5*m*v^2
p=m"v

Where:
f= force
m=mass
e=energy
p=momentum

Answer 2

How do I do it? Which equations of motion? I mean there are many systems, with multiple simplifications. I take the Bousinesq, inviscid, linearized equations under the traditional approximation and then solve. You can reduce the system to a single equation if there is no forcing. Of course this is for stratified fluid dynamics, not solid mechanics. I assume you want to calculate free bodies in a gravitational field. If so, get a good grounding in elementary calculus, then many of the introductory physics text will be easy for you. Try the site below. Have fun!

Answer 3

Force = mass x acceleration

Velocity = integral over time of acceleration

Distance = integral over time of velocity

Answer 4

http://www.physicsclassroom.com/Class/1DKin/U1L6a.html