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## Homework Statement

Two blocks attached by a string (see figure) slide down a 20° incline. Block 1 has mass m1 = 0.65 kg and block 2 has mass m2 = 0.30 kg. In addition, the kinetic coefficients of friction between the blocks and the incline are 0.30 for block 1 and 0.20 for block 2.

(a) Find the magnitude of the acceleration of the blocks.

m/s2

(b) Find the tension in the string.

N

## Homework Equations

Where do I go from here?

## The Attempt at a Solution

Mass 1

F

_{g}=9.81*.65=6.38 N

F

_{gx}= F

_{g}sin(20)

=6.38sin(20)=2.18 N

F

_{gy}=F

_{g}cos(20)

=6.38cos(20)= 5.995 N

F

_{kinetics}=m

_{k}*F

_{N}

=.3*5.995=1.7985 N

Mass 2

F

_{g}=9.81*.3=2.94 N

F

_{gx}=2.94sin(20)=1.006 N

F

_{gy}=2.94cos(20)= 2.76

F

_{kinetics}= .2*2.76= .552 N

I believe I have all of the numbers needed, I just do not know how to solve for the answers using these numbers.