A man is pulling a block of 10kg from rest with 80N up an inclined road. The length of the road is 10m and friction acting on the block is 10N.
Find the net force actind on the block. I want clear explanation.
Phy plz come
2007-04-18 8:25 am
回答 (2)
2007-04-18 7:34 pm
✔ 最佳答案
此Block受到三各力: 人的推力80N, 摩擦力10N,Block重量沿斜面的分力(10kgx10m/s^2xh/10),其中h為斜面高度題目未給出.Net force=80N-10N-100xh/10 N
2007-04-18 10:18 am
路的長度是與net force無關...
但資料不足net force無法計算...
net force= 80-10-mgsinx(slope of the inclined road)
若有slope則可以計算
但資料不足net force無法計算...
net force= 80-10-mgsinx(slope of the inclined road)
若有slope則可以計算
收錄日期: 2021-04-13 00:50:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070418000051KK00113