-A 100 Kg Nonuniform Boom,6

Multiple Choice

-A 100 kg nonuniform boom,6.0 m long,is loosely pinned at the pivot at P.A 700 kg block is suspended from the end of the boom at A.The boom forms a 30° angle with the horizontal,and is supported by a cable,4.0 m long,between points D and B.Point B is 4.0 m from P,and point D is 4.0 m above P.The center of mass of the boom is at point C,which is 2.0 m from P.In the figure,the y-component of the pivot force on the boom at P is closest to:

A) 2500 N
B) 4200 N
C) 6100 N
D) 7800 N
E) 8100 N