Projectile motion Flashcards
What is a projectile?
A body or an object in flight.
What three factors affect the horizontal displacement of a projectile?
The angle, velocity, and height of release.
If the release height = the landing height, what is the optimum angle of release?
45 degrees.
If the release height < the landing height, what is the optimum angle of release?
> 45 degrees.
If the release height > the landing height, what is the optimum angle of release?
< 45 degrees.
Give a sporting example where the release height = the landing height.
Long jump as the ground during take-off is level with the sand pit upon landing.
Give a sporting example where the release height < the landing height.
A basket ball shot as the ball starts at a lower height than the hoop.
Give a sporting example where the release height > the landing height.
A shot put throw as the ball starts at a greater height than the ground.
What is the relationship between the velocity of release and projectile displacement?
An increase in velocity will increase the horizontal displacement.
What is the relationship between the height of release and the horizontal displacement?
The higher the release, the greater the horizontal displacement.
What factors affect the flight of a projectile?
Weight and air resistance.
Does the weight of a projectile ever change during its flight (in sporting context).
No, it is constant throughout its flight path.
Give a sporting example where air resistance has little effect upon the projectile.
A shot put throw as the shot put’s spherical shape and high weight minimise air resistance.
Give a sporting example where air resistance has a large impact upon a projectile.
A badminton shuttle as its lightweight and unaerodynamic shape causes it to fall sharply after deceleration.
