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[考題] 85年普考機械力學第二題
Nov 2nd 2013, 11:59, by seconde

作者seconde (貳)

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標題[考題] 85年普考機械力學第二題

時間Sat Nov 2 11:59:15 2013

[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處 http://ppt.cc/Vcgp 題目如網址，模糊的地方，彈簧底下為"x",三角形長邊"1.2m"，短邊"0.9m" 因為沒解答，手邊的動力解答本也找不到相關題目，想請教這樣算是否正確 1.彈簧壓縮能造成的初速 0.5*k*x^2=0.5*m*v0^2 v0=1.81 2.300N造成的加速度 300=50*a a=6 3.等加速度公式求解 v^2=v0^2+2*a*S V^2=1.81^2+2*6*(0.233+1.2) v=2.64(m/s) 答案是這樣嗎? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.60.236.102

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