Answer:
a. False
Explanation:
For an object to be moving at a constant velocity, a net force of 0 N would be required.
Newton's 1st Law of Motion states that an object will remain at rest unless acted upon by an unbalanced force, and an object will remain in motion unless acted upon by an unbalanced force.
Therefore, the unbalanced force of 6 N would not allow the rock to maintain its constant speed.
The answer to this question is A) False.

Explanation:
Natural length of a spring is
. The spring is streched by
. The resultant energy of the spring is
.
The potential energy of an ideal spring with spring constant
and elongation
is given by
.
So, in the current problem, the natural length of the spring is not required to find the spring constant
.

∴ The spring constant of the spring = 
Yes it is a force omg so smart
The statement which best explains why when you trip, your foot stops, but your body continues to move forward is: A. An unbalanced force stops your foot but does not act on the rest of your body.
A force can be defined as a push or pull of an object or a physical body, which typically results in a change of motion due to the interaction of the object with another.
In Physics, there are two (2) main types of force and these are:
An unbalanced force occurs when two or more forces acting on an object or a physical body are not equal in magnitude and as such, it typically results in a change of motion.
In conclusion, when you trip, your foot stops, but your body continues to move forward because an unbalanced force stops your foot but doesn't act on the other part of your body.
Read more: brainly.com/question/24307064
Answer:
To produce magnetic field
Explanation:
When current passes through a coil in presence of magnetic field then torque is produced in it.This is the working principle of motor.