A 3 kg beam that is 4 m long is supported on one end by a string that makes a 45 degree angle with the wall. If the coefficient of friction between the beam and the wall is 0.75, what is the largest weight that can hang from the other end of the beam without causing it to slip?
a) 9.81 N
b) 19.62 N
c) 29.43 N
d) 39.24 N
