DRAG FORCE - PowerPoint PPT Presentation
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Title:
DRAG FORCE
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Physical Modeling, Fall 2006. 1. DRAG FORCE. D = bv . In free fall ... Tennis Ball 31 m/s. Basketball 20 m/s. Ping-Pong Ball 9 m/s. Raindrop(r = 1.5 mm) 5 m/s ... – PowerPoint PPT presentation
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Title: DRAG FORCE
1
DRAG FORCE
- D bv²
- In free fall
- F mg bvv
- ma mg bvv
- a g (b/m)vv
2
TERMINAL VELOCITY
- If a 0, the speed is constant. That constant
speed is called terminal speed or terminal
velocity, vt. Then,
3
Some Terminal Speeds
- 16 lb Shot 145 m/s
- Baseball 42 m/s
- Tennis Ball 31 m/s
- Basketball 20 m/s
- Ping-Pong Ball 9 m/s
- Raindrop(r 1.5 mm) 5 m/s
