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Need help for Physics Question! Thanks! pingshi2009-09-30 18:47:05

pingshi2009-09-30 18:47:05
The total force needed to drag a box at constant speed across a surface with coefficient of kinetic friction mk is least when the force is applied at an angle q such that

a.
sinq = mk.

b.
cosq = mk.

c.
tanq = mk.

d.
cotq = mk.

e.
secq = mk.

oldbookworm2009-10-01 06:26:22
回复：Need help for Physics Question! Thanks!
pingshi2009-10-01 08:23:00
Can you show your work? Thank!
oldbookworm2009-10-02 05:04:48
回复：Can you show your work? Thank!
pingshi2009-10-02 08:48:46
Thank you so much !! If I did not learn Calculus,how could I sol
oldbookworm2009-10-03 05:47:15
回复：Thank you so much !! If I did not learn Calculus,how could I
pingshi2009-10-03 07:54:18
Thanks! I get your idea.
smallking2009-10-12 02:41:50
post in chinese high school forums, any high school kid in china
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