Hi, I need help with the following problem:(adsbygoogle = window.adsbygoogle || []).push({});

You are pushing a mop of mass m with a force P at an angle theta. The coefficiant of friction is [tex]U_k [/tex].

Find P so that the mop will start moving in terms in [tex]\theta,U_k ,m,g [/tex].

I solved this part and got:

[tex]

P = \frac {(U_k *mg )}{( \sin\theta- U_k*\cos\theta)} [/tex]

Now, for part 2 I have to find the minimum angle [tex] \theta [/tex] for which it will be impossible for me to push the mop in terms of [tex]\theta,U_k ,m,g,P [/tex]..

Like at 90 degrees It is impossible to push the mop. Any help on part 2 would be appreciated.

Thanks

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# Homework Help: Help with hard problem about friction

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