B3-03.HTML
B3-03: LEVER - WRECKING BAR

PURPOSE: To demonstrate the large force attainable using a lever.

DESCRIPTION: Use the lever to pry apart two 2"x4" boards which have been nailed together.

SUGGESTIONS:

REFERENCES: (PIRA 1M20.45)

EQUIPMENT: Two 2"x4" boards nailed together, crowbar, clamps to hold wood steady as shown in photograph.

SETUP TIME: None


Go back to Lecture-Demonstration Home Page.