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Gravitation
Question | Answer |
---|---|
Definition of gravity assist | When you use a nearby star / planets orbit to slingshot your craft into a flyby motion and gain momentum so it can travel further than the engine allows. |
What formula is used for horizontal calculations | d=vt |
Name 1 formula used for vertical calculations | v=u+at |
What is the formula for gravitation? | F=Gm1m2/r^2 |
What is 1 application of gravitational force? | Gravity assist / slingshotting |
What is a projectile? | Any object which once projected, continues its motion by its own inertia and is only influenced by the downward force of gravity |
What are the two components of a projectile? | Vertical Horizontal |
Definition of terminal velocity | When an object is falling for long enough the magnitude of air resistance increases to match the objects weight. The result is balanced forces making the objects fall a now constant velocity. |
What forces act on a horizontal projectile | No forces act on this projectile producing a constant speed |
What forces act on a vertical projectile | A constant gravitational force producing constant acceleration |
Formula for the vertical component | V=Vvsinθ |
Formula for the horizontal component | V=Vhcosθ |