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

I'm stuck on this one,

A 32.5-kg block (m1) is on a horizontal surface, connected to a 6.9-kg block (m2) by a massless string as shown in the Figure. The pulley is massless and frictionless. A force of 223.3 N acts on m1 at an angle of 30.1o. The coefficient of kinetic friction between m1 and the surface is 0.213. Determine the upward acceleration of m2.

2. Relevant equations

3. The attempt at a solution

I determined the net force on m1 as follows

F=223.3Cos(30.1)-(m1*g-223.3Sin(30.1))*.213 - m2*g.

Then I determined the acceleration of m1 by dividing the net force by 32.5kg. I assumed that the acceleration of m1 and m2 should be the same so i got an answer of 2.51 m/s^2.

The online homework says this is wrong, what am I missing?

Thanks!

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

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Moving blocks problem

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