作者ntnuguru (京風~~追夢京華)
看板Physics
標題[題目] 一題關於合力的問題
時間Wed Aug 26 20:01:10 2009
[領域] 高中物理
[來源] 課本習題
[題目]
A baby elephant is stuck in a mud hole. To help pull it out, game keepers use
a rope to apply force Fa, as part of the drawing shows. By itself, however,
force Fa is insufficient. Therefore, two additional forces Fb and Fc are
applied, as in part of the drawing. Each of these additional forces has the
same magnitude F and is oriented at θ = 19.5° away from Fa . The magnitude
of the resultant fo
[瓶頸]
請問答案是不是2fcos19.5°+f 因為不確定fa是否也為F所以請大家幫個忙
謝謝
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◆ From: 140.122.174.158
→ accacaccac:現在高中物理課本改英文了阿? 08/27 03:20
→ chungweitw:圖哩? 08/27 07:49
→ ntnuguru:不好意思 因為是美國學校所以用英文課本@@ 08/27 08:10
→ chungweitw:2Fcos19.5 + F_A. 老實說, 你題目一定沒寫完 08/27 08:46
→ ntnuguru:我也疑惑題目是不是有漏@@但題目確實是這樣感謝上面大大 08/27 12:08
→ chungweitw:不是啊. 你最後一句話明顯沒結束. 08/27 12:48
→ chungweitw:fo -> force 吧. 08/27 12:49
→ chungweitw:之後應該會接 in part(b) is ....之類的吧. 08/27 12:50
