Lift Using Newton's third law, we can understand how a helicopter gets its lifting force. The whirling blades force air particles downward (action). T
{"Image DocumentName": "The whirling blades force air particles downward (action).", "Image ImageDescription": "7.4 Action and Reaction on Different Masses. Lift. Using Newton\u2019s third law, we can understand how a helicopter gets its lifting force. The whirling blades force air particles downward (action). The air forces the blades upward (reaction). This upward reaction force is called lift. When lift equals the weight of the craft, the helicopter hovers in midair. When lift is greater, the helicopter climbs upward.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}