Let the pin at D for member ABCD in Problem 5.69 be prevented from displacing horizontally...

Let the pin at D for member ABCD in Problem 5.69 be prevented from displacing horizontally as load P is applied. Determine horizontal and vertical pin reactions at D.

Problem 5.69

Member ABCD in Figure P5.69 lies in the plane of the paper. If length L is large compared with the depth of the member, determine the pin reaction at D and the horizontal displacement of the pin at D.

FIGURE P5.69