You don't want a confound
We know that the formula to of acceleration is given by,

Re-arrange to the Velocity,
(1)
We know as well for second Newton's law is,

We can re-arrange for the acceleration, so
(2)
Replacing (2) to (1),

Our values are,




Substituting the values,


We have two components of a net velocity, so we can calculate the direct force through,



The fast moving object would have a steeper slope going up, because the distance it is traveling is farther, making it go higher on the graph. The slower moving object would have a more gradual slope, because it is not going as high for the the time it is traveling.
Answer:
Normal Magnetic Polarity
Explanation:
Normal Magnetic polarity.
The polarity can be either normal or reversed Natural polarity is where the north magnetic points (roughly) towards the north pole. ... The reversed polarity is in the opposite direction and the northern end of the magnetic field is near the current southern pole.