At first I thought it was the force of friction acting opposite the direction of motion, but I would say it is not a force. I'm not sure how you can experience a change in acceleration without there being a force
Answer:
The radius of the loop is 
Explanation:
Given that,
Current = 0.2kA = 200 A
Number of turns = 35
Magnetic field = 8.9 nT
We need to calculate the radius of one loop
Using formula of magnetic field
Where, I = current
N = number of turns
B = magnetic field
r = radius
Put the value into the formula
Hence, The radius of the loop is
If an object<span> has a net </span>force<span> acting on it, it will accelerate. The </span>object<span> will speed up, slow down or change direction. An </span>unbalanced force<span> (net </span>force<span>) acting on an </span>object<span>changes its speed and/or direction of motion. An </span>unbalanced force<span> is an unopposed</span>force<span> that causes a change in motion.
thus the car would get its speed, and or direction mixed up</span>
I don't really know but I don't think you can... I can't explain it either. Sorry im no help
