(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

What is the min. downward force on the box that will keep it from slipping?

Coefficients are:

static= .36

kinetic= .26

the box is 30kg and there is a rope pointing -----> with 125N

2. Relevant equations

F=ma

Ms n

Mk n

3. The attempt at a solution

a= (Ms mg + Mk mg)/m = 6.1 m/s^2

Forces:

T= 125N

mg= -294N

n= 294N

Fs= .36

Fk= .26

a= 6.1m/s^2

F=ma -> F=125-.36-.26 = 124.4 ma= 30kg(6.1)= 183N

I am not sure if any of this is correct and am stuck moving on from here. If this is correct, would I divide F/ma? Thanks for any help or clarification you can offer

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# Homework Help: Min. downward force to keep object from slipping

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