U4WS2a selected answers

problem 1
T = 49 N 		problem 2
T1 = 24.5 N; T2 = 24.5 N;
problem 3
T = 725 N 		problem 4
f = 80 N to the right.
problem 5
c) f = 20 N to the left
d) n = 490 N. 		problem 6
c) f= 85 N left;
n=490N