Save Answer A common form of joint inflammation is
development of the bone margins
1 points
It is most prevalent in the aged. It is related to poor blood supply with accompanying nutrition to the joint and over-
osteitis
gastritis
arthrosis
osteoarthritis
osteopathy
ОО

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.