作者barkcmos (barkcmos)
看板Physics
標題[問題] 鉛直圓周運動
時間Sun Sep 23 15:11:10 2012
A stunt motorcyclist rides with uniform speed on the inside rim of a vertical
circular ramp of radius 8m. How fast must the motorcyclist travel to avoid
leaving the surface at the top of the loop?
總覺得此題關鍵在uniform speed
我原本是想答案應該是(gR)^(0.5)
R是半徑8m,g是重力加速度9.8
但是答案不對
答案是11 m/s
有大大可以幫忙解答嗎?
感謝!!!
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1F：推 JAPTX4869:怎麼算的? 09/23 15:52