Applied Mechanics
Basic Fundamental
- Units and Measurements
- Vector and Scalar Quantity
- Friction
- Newton's Law of Motion
- Rectilinear Motion
- Projectile Motion
- Circular Motion
- Simple Harmonic Motion.
Fundamental and derived quantities.
- A large number of physical quantities and every quantity needs a unit.
- Fundamental quantities are only seven in number.
Some Fundamental Units
1. Length =meter(m)
2. Mass= Kilogram(kg)
3. Time =Second (S)
4. Electric Current = Ampere(A)
5. Thermodynamic temperature= Kelvin(K)
6. Amount of Substance =Mole (mol)
7. Luminous intensity = Candela (cd)
Two supplementary units.
(i) Plane angle - radian (rad). (ii) Solid angle - Staradian (St.)
CGS Unit System
1. Length = centimeter(cm)
2. Mass = gram(g)
3. Time = seconds(s)
4. Force = dyne
5. Work = erg
FPS System
1. Length = foot(ft)
2. Mass = pound(lb)
3. Time = seconds(s)
4. Force = poundal