Which of the following statements must be true if the net force on an object is zero? choose all that apply. a) the object must have zero acceleration. b) the object must be at the origin. c) the object must have constant velocity. d) the object must be at rest.

a & d

Explanation:

Given

Net force on object is zero i.e.

if net acceleration is zero therefore change in velocity is zero i.e. velocity is constant

It is not necessary that when an object is at rest acceleration on it is zero for example during Simple harmonic motion of spring mass system when mass is at maximum amplitude i.e. momentarily at rest then its acceleration is maximum.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.