PHY 2004 MCQ 12

[匿名]

2009-08-14 6:55 am

http://img195.imageshack.us/i/72302147.png/

+ EXPLAIN

thz....

回答 (1)

Ck

2009-08-14 7:28 am

✔ 最佳答案

ans is A

force= F
velocity=v

By P=Fv=(F*s)/t
係咁簡單..希望你明啦

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