[問題] 屋頂拋三物體求落地速度大小
剛剛在應徵物理助教時
教授問了一題他說很基本的題目
就是一個人從屋頂拋物
分別是向上,直拋,向下
那請問物體落地時
三物體的速度是大小是?
太久沒碰物理的我竟然回答不出來...
想請問下板上的高手碰到此問題該如何解釋與答案為何?
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