8 points in Newtons. A sign is hung by two cables of equal length as shown below. What is the tension in each cable if the angle between them is 57 degrees, and the sign has a mass of 42 kg Type your answer.. 5 points Which of the following is not true about the force of friction it is equal to zero if there are no other forces acting parallel to the surface It is parallel to the surface OOOO It can never be greater than the forces in the opposite direction it is perpendicular to the surface