Please help me solve problem 2.

Exha be a .0040 .0030 .0010 .0005 .0030 .0050 .0030 .0010 D= .0010 .0030 .0050 .0030 .0005 .0010 .0030 .0040 flexibility matrix for an elastic beam with four points at which force is applied. Units are centimeters per newton of force. Measurements at the four points show deflections of .08..12, .16, and .12 cm. Determine the forces at the four points. #1 #2 #3 #4 13.08 ..12 ..16 fi 12 13 Deflection of elastic beam in Exercises 51 and 52. 2. With D as in Exercise 51, determine the forces that produce a deflection of 24 cm at the second point on the beam, with zero deflections at the other three points. How is the answer related to the entries in D-?[Hint: First answer the question when the deflection is 1 cm at the second point