BOOMERANGS

HISTORY

• First heavier than air flying object
• Australian Aborigines
• Stone Age Europe
• Originally used for hunting

HOW IT WORKS

• Curved shape- central point
• Slight tilt- wing lift
• Difference in air pressure
• Top of the spin- direction of motion
• Bottom- opposite direction

HOW IT COMES BACK

• Air passing under- more lift
• Uses more force to push against mass
• Rotates around axis
• Force acts at 90 degree angle

Untitled Slide

EQUATIONS

• F=mV^2/R
• F- centripetal force
• m- mass of the boomerang
• V- velocity
• R-radius

EQUATIONS

• V=RO
• V-velocity
• R-radius
• O- angular velocity

QUESTIONS

• What was the original purpose of boomerangs?
• Describe the structure of a boomerang?
• What is one equation involving boomerangs?

SOURCES

• http://entertainment.howstuffworks.com/boomerang2.htm
• http://www.howitworksdaily.com/science/how-do-boomerangs-work/
• http://www.rangs.co.uk/howaboomworks.htm
• http://www.thenakedscientists.com/HTML/questions/question/1827/