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)