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You are here: home->pvt_plt->H1017->2.3.3.4.0.A.1
3340
What force provides the forward motion necessary to move a glider through the air?
| | A) Lift. |
| | B) Centripetal force. |
| * | C) Gravity. |
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Anonymous says: |
17 Sep 2008 |
The explanation should read: The wording of the question is misleading. As currently stated with the word 'category' being singular, the answer would be [B] because the listed classes are all in one category. If the question were stated "... which are categories of aircraft?" the correct answer would be [A] because these are all separate categories of aircraft.
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