Advanced Mechanics Flashcards
Vertical Equations
v = u + at
v^2 = u^2 2as
s = ut + 0.5at^2
Horizontal Equations
s = ut
s = (u^2 sin(2@))/g
Time of Flight
t = (2u sin(@))/g
Maximum height
H = (u^2 sin^2(@))/2g
Horizontal Range
R = (u^2 sin(2@))/g
Maypoles
Ft = mg/cos@
Fg = Tcos@
Fc = Tsin@
v = /rgtan@
Banked curves
Fn = mg/cos@
Fg = Fncos@
Fc = Fnsin@
With friction:
Fc = Fnsin@ + Ffcos@
Gravitational Field Strength
Types of Orbit: Low Earth Orbit
Adv:
- Can communicate with Earth more quickly due to lower altitude
Disadv:
- Doesn’t stay in a fixed position above Earth’s surface
- Experiences greater air resistance due to the lower altitude (requires regular maintenance)
- Orbital decause can cause satellite to crash or burn up in the atmosphere
Geostationary
Adv:
- Suffers less damage from orbital decay
- Stays fixed above a particular position on Earth, allowing for constant communication
Disadv:
- Higher altitude causes delays in information transfer
- Expensive to launch
Kepler’s 3rd
Define Projectile
A macroscopic slow-moving object
Circular motion
The motion of an object along the circumference of a circle
Centripetal force
A force that is directed towards the centre around which the body is moving
Centrifugal force
A force directed away from the centre around which an object is moving
