大D會唔會有分別.........

2006-11-19 7:21 pm
Will the bigger parachute fall faster or slower?
最好用中文答,
如果唔係我唔識睇,
最好 附有英文網頁,
因為要明天要交
急!急!急!

回答 (3)

2006-11-19 7:26 pm
✔ 最佳答案
大d嘅降落傘會跌慢d, 因為個傘嘅面積大左, 咁個阻力咪大d, 佢包住多d空氣

英文係咁答
Because the area of the parachute is bigger, so that there is more air friction acted on it. The parachute will fall slower relatively.
參考: 全部自己寫的
2006-11-19 7:45 pm
如果其他因素不變~降落傘大d,風阻就大d,咁就跌慢d
2006-11-19 7:34 pm
問題不完整... 因為無講負重...

本身呢條問題應該係講緊 terminal velocity 既問題...

如果降傘本身做成既風阻係抵消唔到負重既話大小就冇分別

如果降傘本身做成既風阻係接近抵消負重既話就冇明顯既分別

如果降傘本身做成既風阻係超出負重好多既話就會好大分別 (好似風箏既原理)

p.s. knowledge 唔係用黎搵人代你做功課既地方,所以我唔會俾 url 你抄


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