KE-Time graph問題
本帖最後由 john24d2003 於 18-4-2011 02:10 編輯http://i1142.photobucket.com/albums/n608/1022888/DVC00144.jpg?t=1303018838
ans:b
有冇人可以解釋下個slope點解係曲線 K.E=1/2mv^2.......(1)
v=gt ..................(2)
Put (2) into (1)
K.E=1/2m(gt)^2
K.E is direct proportion to t^2 K.E=1/2mv^2.......(1)
v=gt ..................(2)
Put (2) into (1)
K.E=1/2m(gt)^2
K.E is direct propo ...
kitson 發表於 18-4-2011 22:45 http://www.nakuz.com/bbs/images/common/back.gif
2式有u 2式有u
john24d2003 發表於 18-4-2011 23:50 http://www.nakuz.com/bbs/images/common/back.gif
Assume u=0 Assume u=0
kitson 發表於 19-4-2011 18:26 http://www.nakuz.com/bbs/images/common/back.gif
條問題唔係咁講= =
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