temporary
V = U+at
u=initial, v=final, s=distance, a=accel., t=sec.
s = ut +½at^2
u=initial, v=final, s=distance, a=accel., t=sec.
It's easier to look at particles on a slope, by tilting the slope image to look like flat ground (Gravity force will seem to be acting at an angle in some direction)
momentum = mass x velocity
Impulse = mu-mv
u=initial, v=final, m=mass
Fmax = µR
µ = friction (0 < X < 1) R= result force upwards R= sum of all downwards - sum of all upwards.
S= t/2 x (v-u)