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範例:斜面上固定阻力與功率

一人在水平面路上推一購物車,推力50Nt與路面成60o,若車子在10秒內以等速度前進8公尺,則(A)推力所作之功為200焦耳 (B)推力的功率為20瓦特 (C)摩擦力所作之功為-200焦耳 (D)重力所作之功為346焦耳。


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Posted in 功率.

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By admin – 2009 年 04 月 09 日

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