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True or false Negative acceleration always means that a system is slowing down?
Wiki User
∙ 6y ago
false
A car can have a negative acceleration and be speeding up.
A negative acceleration determines the direction of the acceleration
A car with forward acceleration will speed up in the forward direction
A car moving forward with a negative acceleration will slow down
A car not moving with a negative acceleration will speed up in the backward direction
A car moving backward with a negative acceleration will speed up in the backward direction
Wiki User
∙ 13y ago
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What system gets your body ready for emergency by increasing Adrenalin and slowing digestion down?
The sympathetic nervous system.
For a given value of net force what would increase acceleration for a system?
It will increase mass.
When heat flows into a system its value is When heat flows out of a system its value is negative?
Heat is energy and cannot be negative, If you are talking about heat flow then if you define outflow to be negative then inflow is positive.
Explain how negative work on a system occurs?
The system is doing net work.
Why negative feedback is essential to a homeostatic system?
Negative feedback loops are important because it helps the body return to homeostasis.
Does negative acceleration have constant acceleration?
Not necessarily so. Negative (deceleration) could be growing or decreasing in magnitude. The cause is going to be the Force that is acting on the system. If the Force is increasing, the acceleration will be also.
A classmate in the physics state that the negative acceleration always mean that a moving object is decelerating is that true?
It is not true. It means that the object MIGHT be decelerating but not "always" (as your friend says). Instead, think of it this way... We start by clarifying that there is no such thing as "negative acceleration" per se. That is, that acceleration is a vector composed of an absolute value scalar and a direction. So "negative acceleration" actually refers to an acceleration which just happens to be in the negative direction of whatever coordinate system you've chosen to define for the particular problem. We define a coordinate system (for a two dimensional universe to keep things simple) with positve/negative x and y. If the object starts out already moving in the positive X direction, then to apply an acceleration in the negative direction would mean there is deceleration. If the object is stationary or moving in the negative X direction, then applying an acceleration in the negative X direction would actually be accelerating the object. In other words, the reference from has to stay constant for there to be meaningful discourse on the subject. By the same note, even moving in the positive X direction, if the object is acclerated in the negative Y direction then the object is actually accelerating.
What is the part of the autonomic nervous system that is always active and acts as an acceleration for organs?
sympathethic nervous system
Is potential energy in k-shell is negative then why?
bcoz the energy of bound system is always negative
It is physically impossible for an object to have a negative acceleration and yet be speeding up?
Not yet possible, maybe later. Acceleration is the first derivative of the speed by definition. So this comes back to a mathematical question. When do we have a first derivative negative? The only possibility is that the function has a negative slope, meaning in the case of the object trajectory, that the object's speed is decreasing. If you could have objects decelerating while speeding up you should also think about accelerating objects winding down and steady objects wandering abound. As this was not easy to find conceptual representation for such situations, God just said to objects "thou will stop speeding up when you have a negative acceleration, capito?" <<>> The answer could be 'yes' if the body has a negative velocity as well as a negative acceleration (relative to a given system of coordinates). In that case the speed is increasing even though the acceleration is negative.
Why is negative cam provided on the air starting system in a diesel two stroke engine?
negtive means downward and inward movement of cam. Due to ease to reversing and reduce acceleration forces cam is negative
When a system experiences the following two conditions the delta E is always negative?
bogars theory
Is gravitational force positive or negative?
Gravity force is always downward and it depends how you define the coordinate system. By convention down is negative, but that is only a general rule
What is the purpose of the brakeing system?
It is used for slowing or stopping a moving vehicle.
What is the purpose of the braking system?
It is used for slowing or stopping a moving vehicle.
What system gets your body ready for emergency by increasing Adrenalin and slowing digestion down?
The sympathetic nervous system.
What is the acceleration of gravity in mks system?
jejeje
