PIRA 1M40.40 - Conservation of Energy: Ballistic Pendulum

• A ~2 kg block is suspended by 1 meter wires so that it will swing freely when it is shot by a ~2 gram bullet.
  

• The bullet leaves the barrel with a velocity of about 1000 feet per second.
  

• As the block swings it slides a pointer along a protractor.
  

• The gun is clamped to the table and left unloaded with a bullet. To load, see inset.
  

• Turn safety off before firing.

Photo Shows the Demonstration Used at U.T. Austin.

Details of the 22 caliber rifle used in the demostration..

Safety Lever is Rotated Clockwise to Fire.

--If in doubt, ask for assistance.--

Last Updated 2/98 - University of Texas at Austin - All Rights Reserved.