An object has zero acceleration. From this you can conclude that (add together true anwers and enter)
1 There are no forces acting on the object
2 The speed of this object is zero
4 The position of this object is zero (or at the origin)
8 The speed of this object is not changing






An object rolling across a level smooth surface (call this the X direction) is slowing down. From this you can conclude that (add together true anwers and enter)
1 There are no forces acting on the object in the X direction
2 There is exactly one force acting on the object in the X direction
4 There is at least one force acting on the object in the X direction
8 The net force on the object is not zero