projectile motion Flashcards
projectile (def)
initial velocity, move freely, gravity and aother external forces
max horizontal distance
projection angle, length of time in air
speed, influences distance
takeoff > landing
takeoff < landing
less than 45
more than 45
increase release height
= increase in horizontal distance due to increase in time in air
increase in time air
= increase in vertical velocity
accuracy
speed v accuracy trade off
into wind
decrease angle of projection
open kinetic chain
closed
most distal segment is not fixed but free to move in space (throwing a ball)
pushup, your wrist?
sequential segmental summation
sum of the directional components of the linear velocities, moving at that moment
increase linear velocity of a rotating segement
increase angular velocity
increase radii of rotation
increase number of rotating segments
for max velocity
move each segment at the instant the previous segment slows down
simultaneous segmental summation
heavy object or requires accuracy
all segments act nearly simultaneously
accuracy = rectilinear path
throwing/pushing continuum, things that impact it
mass size shape strength of performer skill of performer
