projectile motion Flashcards
projectile
free fall
vertical component
is influenced by gravity
horizontal component
influenced by air resistance
influencing factors
-angle
-acceleratiom
-height
angle of projection
-trajectory solely dependent on angles
-three shapes:
{vertical- angle =90
{oblique-angle <90
{horizontal-angle >90
projection acceleration
-vertical P. angle= initial acceleration
-oblique angle= acceleration determines both vertical and horizontal length of trajectory
projection height
-difference between height initial and height at which lands or ceases motion
-when projection angle and acceleration are constant this equates to longer flight time and greater horizontal displacement
optimal projection conditions
-maximize acceleration and release height
-PH=0 then PA=45
purposes in projecting object
-maximim horizontal distance
-maximum vertical distance
-maximum accuracy
horizontal distance
-object will continue until ceased by external force
-longer in air the greater the horizontal component
vertical velocity of COG at takeoff
-determiens how high COG will travel
-influence of air resistance
-projection angle influences takeoff velocity
vertical distance
-3 factos
>vertical velocity of COG at takeoff
>height of the COG at takeoff
>COG to finger tip height
height of COG at Takeoff
-maximized before take off
-can be moved relative to the body by relocating segments
