Boomerang Tutorial

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Physics of boomerang • A boomerang does funny things because it is in fact a gyroscope. Aerodynamic forces generate a twisting moment which cause the "gyroscope" to precess and to move on a circular path. • However, to understand what precession is, you simply need to observe that as well as spinning quickly round its own axis, the boomerang slowly changes the direction in which it is pointing. Sunday, May 30, 2010 12
• Examining the forces acting on a boomerang of radius a. The centre of the boomerang is moving at a constant forward speed V and the boomerang is spinning with angular velocity ω, as shown in the diagram. The "top" end A is therefore moving faster than with speed “V+aω”, and the "bottom" end B is moving slower with speed “V-aω”. Sunday, May 30, 2010 13
Page 1 and 2: Boomerang Tutorial Sunday, May 30,
Page 3 and 4: What is boomerang? It is a bent or
Page 5 and 6: Features of boomerang • Boomerang
Page 7 and 8: Sunday, May 30, 2010 7
Page 9 and 10: • 1. Leading shock wave front. Fl
Page 11: Topside spins forward - backside sp
Page 15 and 16: 1. A constant centripetal force F p
Page 17 and 18: The precise relationship is express
Page 19 and 20: • For the case of a boomerang wit
Page 21 and 22: Throwing technique • Right-hander
Page 23 and 24: Choose a grip that is comfortable f
Page 25 and 26: • It is extremely important to av
Page 27 and 28: In windy conditions (over 5 MPH), b
Page 29 and 30: 1. Hold boomerang facing the wind,
Page 31 and 32: o Conclusion: When throwing in wind
Page 33 and 34: • Problem: Boomerang circles but
Page 35 and 36: TOO LITTLE LAYOVER • Problem: Boo
Page 37 and 38: FLAT SIDE FACING IN • Problem: Bo
Page 39 and 40: Sources • Wikipedia • Google im

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