P5c: Projectile Motion

An object PROJECTED HORIZONTALLY in the Earth's gravitation field
1. darts/missiles/balls
Path is CURVED a.k.a. TRAJECTORY
1. PARABOLIC
  1. FASTER NEARER GROUND
  2. SLOWER AT TOP
NEWTON'S PROJECTILE
1. A projectile thrown horizontally from a high point on Earth would never hit the ground if it was launched with enough speed
  1. REMAIN in ORBIT above Earth
Horizontal Projection
1. A ball THROWN HORIZONTALLY from the top of a tower will fall to the ground at the same time as a ball DROPPED VERTICALLY
  1. Horizontal
    1. Acceleration=0
    2. Time=Vertical time
    3. HOW FAR
  2. Vertical
    1. Initial Velocity=0
    2. Acceleration=10
    3. Time= Horizontal time
    4. HOW HIGH
  3. EQUATIONS OF MOTION
Analysing Projectile Motion
1. AIR RESISTANCE IS IGNORED
2. Constant horizontal velocity
3. Steadily increasing vertical velocity
  1. Accelerates towards the ground
Forces on Projectiles
1. When air resistance is IGNORED the force REMAINING is GRAVITY
  1. ONLY affects VERTICAL VELOCITY
2. Accelerates downwards at 10m/s
3. Deccelerates at 10m/s
  1. Moves upwards
DIAGRAM

Resumen del Recurso

	Creado por zoey3569 hace más de 10 años