projectile motion

Question 1

define projectile motion

Answer 1

the motion of an object through the air

Question 2

what are the three factors that determine the horizontal displacement of a projectile

Answer 2

velocity of release

height of release

angle of release

Question 3

what should you consider to decide angle of release

Answer 3

release height
landing height

Question 4

optimal angle of release

Answer 4

when release height = landing height
optimal angle = 45

release height > landing height
optimal angle = less that 45

when release height > landing height
optimal angle = more than 45

Question 5

what does a parabolic flight path look like

Answer 5

symmetrical

Question 6

what does a distorted parabolic flight path look like

Answer 6

asymmetrical

Question 7

what two main forces affect projectikes while in the air

Answer 7

weight
air resistance

Question 8

what happens to the flight path when mass is large

Answer 8

AR has little effect on momentum an therefore it will have a rarabolic flight path

Question 9

what horizontal and vertice components do you need to include in a flight paths diagram

Answer 9

1. hotizontal momentum arrow stays the same size at all found points (release point, highest point, opposite angle of release, point before contact) as it is constant
2. net force of zero at highest point (no up or down arrow
3. side of upwards arrow (release point) and opposite downwards arrow are equal = parabolic
   4.point of contact has the largest downwards arrow