1) 3.65 kg

2) The force of friction is 4.5 N for the smaller mass and 59.2 N for the larger mass.

3) a = 18.04 m/s^2,    FN= -3.7 N  (The reason the force is negative is because I made the mass of the box too small by accident.  If you got this value, you have done the problem correctly.)

4) a = 7.71 m/s^2,     x = 47.28 m,     FN = 478.02 N

5) FT = 32.07 N,     a = 0.89 m/s^2   Mass A accelerates upward, mass B accelerates down the ramp.

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