Timeline for Helicopter in an Elevator
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
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| Jan 23, 2012 at 16:27 | comment | added | Alan Rominger | The air in an elevator moves exactly with the elevator aside from less than 1 part in 1000. To take acceleration as an adjustment to gravity is to take the elevator car as the reference frame. Given the reasonable assumption of constant lift, the helicopter would always hit the floor if the elevator moved a distance greater than the original distance from the helicopter to the floor. If the elevator accelerates and continues with a constant speed upward the helicopter would always hit the floor. | |
| May 6, 2011 at 15:49 | history | answered | Colin K | CC BY-SA 3.0 |