What force, in newtons, is required to keep the object in the picture below at rest? 18N 18N 12N ?N
A.
0 N
B.
12 N
C.
18 N
D.
48 N
B. 12 N
Since the object is at rest, the net force acting on the object must be 0. The forces acting on the object are 18 N downwards and 18 N upwards, resulting in a net force of 0 N. Since there is no force imbalance, the force required to keep the object at rest is 0 N.