A 175-Kg Picture Frame Is Hung on the Wall by Means

Multiple Choice

A 1.75-kg picture frame is hung on the wall by means of a horizontal string on the back of the frame. The string is attached to screws on the sides if the frame, which are separated by a distance of 37.0 cm. When hung from a nail on the wall, the string is displaced at its center by a vertical distance of 4.00 cm. What is the tension T in the string?

A) 8.6 N
B) 40.6 N
C) 159 N
D) 17.2 N
E) 79.4 N