Question

7 multiple answer 1 point what does newtons first law imply? (check all that apply) if a net force (σf) is applied to a body then that body will accelerate. if a body accelerates then there must be a net force (σf) applied to it. both the state of rest and constant velocity are natural. acceleration is the only
eal\ motion. it requires no force to keep something moving at a constant speed in a straight line. if an object changes its motion then an unbalanced force must have been applied to it.

Explanation:

Newton's First Law states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This implies that both rest and constant - velocity are natural states that do not require a net force. Also, if an object's motion changes (it accelerates), an unbalanced force must have been applied. And it requires no force to keep something moving at a constant speed in a straight line. The statements about acceleration being the only "real" motion are not implications of Newton's First Law, and the statements about net - force and acceleration are more related to Newton's Second Law.

Answer:

C. Both the state of rest and constant velocity are natural.
E. It requires no force to keep something moving at a constant speed in a straight line.
F. If an object changes its motion then an unbalanced force must have been applied to it.