why motions in space are frictionless?

👨🏻‍🏫 學術台其他 - 科學

用戶237002

2008-06-15 12:54 am

because there's no air in space? please help me!! we will have our science examination on tuesday!! my godness!

回答 (2)

Chifai

2008-06-17 1:49 am

✔ 最佳答案

friction 黎自兩種
第一係兩樣物件摩擦時既力
第二係當物件移動時因為有空氣既存在而有個阻力阻止物件繼續前進
係太空冇空氣.又冇接觸其他物件
thus係太空係frictionless

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用戶7369

2008-06-15 1:06 am

yes, no air in space cause frictionless.
air in the earth produce air resistance.
air resistance means friction.

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