(adsbygoogle = window.adsbygoogle || []).push({}); Forces and the Laws of Motion HELP!!

1. The problem statement, all variables and given/known data

A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0 degrees with the horizontal. the block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinectic friction between the block and ceiling.

m=4kg

Fnet=85N

a=6m/s2

2. Relevant equations

uk= Fk / Fn

3. The attempt at a solution

uk= Fk / 85.0 N

sin 55 = x/85

x=69.6

uk= 69.6/85 = .82

the coefficient of kinetic friction between the block and the ceiling would be .82??

is that right??

i know this is too much to ask, but can anyone PLEASE explain to me forces and laws of motion.?? pleaseeee. i need major help about these especially with problems that have the angles and coefficient of friction..

thankss :D

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Forces and the Laws of Motion HELP

**Physics Forums | Science Articles, Homework Help, Discussion**