Basic Physical Quantities

There are seven basic physical quantities from which all other units of measurement can be derived. They are:
Time (s)
Length (m)
Luminous intensity (cd)
Mass (kg)
Number of particles (moles)
Temperature (K)
Charge (C)

v = u + at
v� = u� + 2as
s = ut + �at�

1. inertia
2. F = ma
3. action & reaction

F = Gm₁m₂/r²

Centripetal acceleration is given by
a = v²/r

Centripetal force is given by
F = ma = mv²/r

Static friction = Force acting normally to surface x coefficient of static friction
= F_N m_S

Dynamic friction = Force acting normally to surface x coefficient of dynamic friction
= F_N m _D