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JM92

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Hi, nice to meet everybody here at physicsforums.com! I'm JM92 and I have a physics problem I need help with.

Find the smallest value of the mass

[PLAIN]http://img695.imageshack.us/img695/6328/physics2.jpg

F

∑F(Horizontal) = 0

∑F(Vertical) = 0

F

Fg

Fg

[PLAIN]http://img3.imageshack.us/img3/4139/physics11.jpg

I retyped and redrew everything with MS paint.. Hopefully that made it easier to read and not harder..

PS. The correct answer is 4.98kg.

Thank you for your help!

EDIT: Sorry, the thread title should be called "Minimum Mass Problem"

## Homework Statement

Find the smallest value of the mass

*M*for which the system will remain at rest given that the coefficient of static friction is 0.100[PLAIN]http://img695.imageshack.us/img695/6328/physics2.jpg

## Homework Equations

F

_{net}= m*a*∑F(Horizontal) = 0

∑F(Vertical) = 0

F

_{f}= μ・F_{N}Fg

_{x}= Fg・sinθFg

_{y}= Fg・cosθ## The Attempt at a Solution

[PLAIN]http://img3.imageshack.us/img3/4139/physics11.jpg

I retyped and redrew everything with MS paint.. Hopefully that made it easier to read and not harder..

PS. The correct answer is 4.98kg.

Thank you for your help!

EDIT: Sorry, the thread title should be called "Minimum Mass Problem"

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