0
The 'speed' of a body cannot be negative.
But if you are stating the 'velocity' then it can be negative. Negative velocity means
it is going opposite to the direction that you decided to call the positive direction.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoNo. "Speed" is a scalar quantity, without sign or direction.
But "velocity" can, if the object is moving opposite to the direction
that you defined as the positive direction.
Add your answer:
Earn +20 pts
Why is retardation called negative acceleration?
retardation is nothing but the decrease in speed. so if the increase in speed can be taken as positive then for sure decrease in speed can be taken as negative acceleration.
Is it possible to have a negative speed?
No, Speed is always greater than or equal to zero. However, velocity can be negative, which just means you have a positive speed in the opposite direction! (scalar(number) versus vector).
How can you have negative acceleration but not negative speed?
The negative part in negative acceleration is indicating direction, as acceleration is a vector quantity. Speed however, is a scalar and has magnitude only and therefore cannot be negative. An example could be -2.6ms-2 meaning that there is an acceleration of 2.6ms-2 but in the opposite direction to other vectors.
What is a negative slope?
Negative Slope can be your speed, position, and/or acceleration, as long as you X increases but your Y decreases.
What is positive negative and zero acceleration is?
positive acceleration is when things speed up; negative acceleration is when things slow down; and zero acceleration is when things do not speed up or slow down, this is called constant speed, or no change in velocity.
Can a body have negative speedwhy?
No. The speed is the length of the velocity vector, and that is always zero or positive.
Can the speed of body be negative?
The problem here is the conflating of the term "speed" with "velocity". Velocity is a vector - it has both intensity and direction. Velocity can be negative. Speed really only has magnitude, so it is normally only positive; since there is no direction associated you can't define a meaning for negative speed (unless you decide to define it as synonymous with velocity) When a body is thrown in upward direction and upward motion is defined as positive velocity, its velocity decreases with time and at highest point speed and velocity become zero. When the body falls downward its speed i increases until hit the ground but since it is moving in the opposite of the direction that was defined as "positive", its velocity is negative.
When a body moving with uniform and negative acceleration?
When a body is moving with uniform and negative acceleration, its velocity decreases at a constant rate over time. This means that the speed of the body is decreasing evenly over time.
When the speed of the body moving in an straight line changes continuously then the body acquires?
When the speed of a body moving in a straight line changes continuously, the body acquires acceleration. This acceleration could be either positive (speeding up) or negative (slowing down), depending on whether the speed is increasing or decreasing.
What happens to your speed if you have a negative acceleration do you speed up or slow down?
If you have a negative acceleration, you are slowing down. Acceleration is the rate of change of speed, so a negative acceleration means a decrease in speed.
Is it possible to travel at a negitave speed?
In classical physics, negative speeds do not make sense as it implies going backward in space. In some contexts, negative speeds can be used in mathematical models or theoretical physics to represent certain relationships, but they do not have a physical interpretation as traveling at a negative speed.
Can the speed of the particle ever be negative if so give an example if not explian why?
No, the speed of a particle cannot be negative. Speed is a scalar quantity that only considers the magnitude of the velocity, not its direction. Therefore, it is always positive or zero. In cases where the particle reverses its direction, the velocity is negative but the speed remains positive.
Is it possible to have negative value in speed and displacement?
No, in physics, speed and displacement are scalar quantities that represent magnitudes and cannot be negative. However, the direction of motion can be indicated by assigning a negative or positive sign to the speed or displacement value.
Why is retardation called negative acceleration?
retardation is nothing but the decrease in speed. so if the increase in speed can be taken as positive then for sure decrease in speed can be taken as negative acceleration.
How can you recognise body getting into acceleration?
a body is accelerating if it is speeding up faster and faster. Acceleration is the change in velocity. or the change in speed. Slowing down is also acceleration but it is negative acceleration or de acceleration.
Can the speed of the particle ever be negative if so give an example if not explain why?
No, the speed of a particle cannot be negative. Speed is a scalar quantity and is always positive, representing the magnitude of the velocity of an object. Negative values are used to represent the direction of motion in one-dimensional motion.
What is negative speed in science?
Speed in science means vector (direction and velocity). Any force which lessens the vector can be considered negative speed. A spacecraft's retro rockets are a good example.
