Man Moving Crate: Physics Homework Help

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AI Thread Summary
The discussion revolves around a physics homework problem involving a man pulling a 100 kg crate with a force of 150 N. The user seeks clarification on how to approach the questions regarding the forces involved, specifically the force required to start moving the crate and to maintain constant speed. They mention the coefficients of static and dynamic friction but express uncertainty about the relevant equations and calculations. The user attempts to calculate the maximum static friction force but is unsure if this is the correct answer for part a of the assignment. Overall, the thread highlights the need for guidance on applying physics concepts to solve the problem.
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My teacher gave us practice questions for the midterm. Can't for the life of me remember how to do this. Any hints would be greatly appreciated. I'm not just trying to bum answers off you guys; I really don't know where to start.

Homework Statement



Чs = .2 (the Ч is backwards - can't find a closer symbol, but you know what I mean)
Чk = .1
A man is pulling a 100 kg crate to the right. Fman = 150 N
a) What is the force? [er, not entirely sure what he means by this?]
b) Fman to get the crate moving?
c) Fman to move crate at constant speed?

Homework Equations



Unknown

The Attempt at a Solution



heh.
 
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You must show some work to get help here. What is the general equation relating the horizontal force on an object like that crate, the weight of the crate, and the coefficients of static and dynamic friction \mu_s , \mu_d ?
 
Well I know fsmax = Чs(N)(9.8)

So fmax = (.2)(150)(9.8)? which would be 294 N

Is that what he wants for part a?
 

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