projectile motion

Question 1

projectile (def)

Answer 1

initial velocity, move freely, gravity and aother external forces

Question 2

max horizontal distance

Answer 2

projection angle, length of time in air

speed, influences distance

Question 3

takeoff > landing

takeoff < landing

Answer 3

less than 45

more than 45

Question 4

increase release height

Answer 4

= increase in horizontal distance due to increase in time in air

Question 5

increase in time air

Answer 5

= increase in vertical velocity

Question 6

accuracy

Answer 6

speed v accuracy trade off

Question 7

into wind

Answer 7

decrease angle of projection

Question 8

open kinetic chain

closed

Answer 8

most distal segment is not fixed but free to move in space (throwing a ball)

pushup, your wrist?

Question 9

sequential segmental summation

Answer 9

sum of the directional components of the linear velocities, moving at that moment

Question 10

increase linear velocity of a rotating segement

Answer 10

increase angular velocity
increase radii of rotation
increase number of rotating segments

Question 11

for max velocity

Answer 11

move each segment at the instant the previous segment slows down

Question 12

simultaneous segmental summation

Answer 12

heavy object or requires accuracy
all segments act nearly simultaneously
accuracy = rectilinear path

Question 13

throwing/pushing continuum, things that impact it

Answer 13

mass
size
shape
strength of performer
skill of performer