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1. 如右圖所示,以一細繩將球體懸掛於光滑牆面上,繩很輕,若球的大小與質量改變,當繩長 減少時,繩的張力T與牆所受之正向力N的變化為何? (A) T 變大,N 變小 (B) T 變小,N 變大 (C)
問題詳情
1. 如右圖所示,以一細繩將球體懸掛於光滑牆面上,繩很輕,若球的大小與質量改變,當繩長
減少時,繩的張力T與牆所受之正向力N的變化為何?
(A) T 變大,N 變小
(B) T 變小,N 變大
(C) T 與 N 都變小
(D) T 與 N 都變大
(E)T、N 均不變。
參考答案
答案:[無官方正解]
難度:非常困難0
統計:A(2),B(0),C(0),D(0),E(0)
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