Well, if im honest! That has confused me and I am Einstein soo...
There wernt any roads back then, u were always shovelling away BUT at least everyone was idolizing you and whatever fartbox u were kicking...
Positive and negative
All electrical components have positive and negative wires to complete the circuit.
The acceleration is in the direction of the positive force so you will have deceleration in the direction of the negative force.
Yes, it just depends on how you define which way is "positive". If you define the "backwards" direction to be the positive direction, acceleration will be positive when going "backwards". Note that if we define the axes like this, going "forwards" will give the car a negative acceleration.
This depends on how you define your axes. Let's assume they're defined as normal (being positive is accelerating, negative is breaking, and for velocity positive is driving forward, negative is driving in reverse). Then of course, you are speeding up. This simply means the train was in reverse, but it's accelerating in the positive direction now.
If you have an alternating current, which changes direction, and we graph the direction in terms of positive and negative, then at some point, as the current changes from positive to negative, and from negative to positive, it must pass through zero. If you imagine a car, driving forwards, that then changes direction and drives in reverse, there must be a point when it is not moving. Changes of direction, or voltage, are not instantaneous.
Since the road conditions, rules, signs and characteristics of the roads vary from country to country, self driving features will require their own implementation in each region. At some point it might work, but not from the start.
The driving conditions between Birmingham, Alabama and Nashville Tennessee are excellent. The driving distance is 191 miles via I-65. The driving conditions on I-65 are excellent.
When driving in adverse conditions, clean the snow off of your car before you begin driving. Defrost the front and back windshields.
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