U4WS3 answers
problem 1
A: T=49N
B: T1=T2=24.5N
problem 2
T1 is on top, T2 on bottom
T1=107.8N
T2=39.2N
problem 3
T1=T2=25N
problem 4
a)T2=60N
b)W=-52N
problem 5
T=-98N
n=169.7N
problem 6
m=34.9kg
problem 7
a) f=-173.2N
b) n=390N
problem 8
a) n=23.4N
b) f=-3.21N