Year 12 Mechanics Ballistic Cart Experiment:


Purpose:

  • The purpose of this experiment is to demonstrate relative motion (if both the cart and ball have the same horizontal velocity then the ball will always land in the bucket.
  • The purpose of this experiment is to demonstrate relative motion (if both the cart and ball have the same horizontal velocity and equal horizontal accleleration (e.g. on an incline) then the ball will always land in the bucket.
  • This experiment is also a good introduction to projectile motion, with the ball displaying a parabola


Equipment:

  • Ballistic cart (to shoot ball up and catch) [Pasco ME-9486]
  • Ballistic cart drop rod (to drop ball from height to show ball landing in bucket)
  • A tunnel always adds a bit of excitement.

Method:

  • .....

Ballistic_cart1.JPG
Example of motion ball will undertake
Y12_De38.gif
Click to watch video by PIRA

Ballistic_cart2.JPG

Ballistic_cart3.JPG
angle of incline does not affect the ball being caught. Why?




Pitfalls / causes of error

  • Try this before doing with your class. Often slight adjustments are required.
  • Remember this requires a 9V battery which if left on does go flat!
  • Ensure the trip goes smoothly through the sensor - friction will cause this experiment to fall flat on its face.



Model data:

  • see video above and manual below.

References / other comments: