projectile motion Flashcards
what is projectile motion
refers to movement of either of an object or the human body as it travels through the air
- in sport as soon as object is kicked or thrown, it becomes projectile
factors affecting horizontal displacement
- angle of release
- velocity of release
- height of release
angle of release
dependent on height of release and landing
when release height and landing are the same: optimum= 45 degrees
LONG JUMP
where release height is greater than landing height: optimum = less than 45 degrees
SHOOTPUT
where release height is below landing height: optimum= greater than 45 degrees
BASKETBALL SHOT
what is velocity of release
- an increase in velocity will increase horizontal displacement
- in shot put the player rotates around in a circle to create as much velocity as possible so a greater horizontal displacement is achieved
height of release?
- an increase in release height will increase horizontal displacement
- the taller the shotputter, the more advantage they have
- force of gravity is constantly acting on the mass of an object so the higher the release, the greater the horizontal displacement
factors affecting different flight paths of different projectiles
weight and air resistance
- crucial in deciding whether a prjectile has a true parabola or distorted parabola
flight of the shot
- with shotput, you do not have to consider air resistance
- gravity will always remain the same
- therefore flight path is parabolic
- with a shuttlecock it is affected by air resistance
- longer the flight path, longer the air resistance can affect a projectile
- projectiles with a lighter mass will be affected by air resistance
- flight path deviates from a true parabola= distorted
horizontal and verticle vectors
vertical= only affected by gravity
horizontal= remains constant
- possible to add verticle and horizontal vectors together to create a resultant vector
