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

A 900 N crate is being pushed across a level floor by a force of 313 N at an angle of 25 degree above the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.17. Acceleration of gravity is 9.81 m/s^2

http://img233.imageshack.us/img233/3717/31nk3.jpg [Broken]

What is the acceleration of the box in m/s^2?

2. Relevant equations

F = ma

3. The attempt at a solution

Fg = 900 N

mass of crate = 91.743 kg

U = 0.17

g = 9.81 m/s^2

theta = 25

Fn = 900 + 132.2795

Ff = 0.17 * Fn = 175.4875

313cos 25 = 283.674 N

313sin 25 = 132.2795 N

Fx = ma

283.67 = 987.743a

a = 3.201 m/s^2

I didn't know whether or not to incorporate the y direction forces

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# Homework Help: Finding acceleration of pushed crate

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