基礎物理斜向拋射 - 考試
By Megan
at 2013-02-17T11:23
at 2013-02-17T11:23
Table of Contents
在一高75公尺的高樓取一物以初速20m/s,仰角30度斜向拋射,請問飛行時間多少?(g=10m/s)
答案為10秒
請問一下各位高手,斜拋的飛行時間是2*水平分量Vy/g
那應該2*(20sin30)/10=2秒??怎麼不對~
小弟買參考書正在自學,物理底子很糟!
謝謝回答^^
--
答案為10秒
請問一下各位高手,斜拋的飛行時間是2*水平分量Vy/g
那應該2*(20sin30)/10=2秒??怎麼不對~
小弟買參考書正在自學,物理底子很糟!
謝謝回答^^
--
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