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How do you describe acceleration in physical science?
Acceleration in physical science is the rate of change of an object's velocity over time. It can be positive (speeding up), negative (slowing down), or even changing direction. Acceleration is a vector quantity, meaning it has both magnitude and direction.
Can momentum have a negative velocity?
No, momentum can not have a negative velocity. Velocity is the rate of motion of a body from one position to another position in a particular direction. Bodies traveling in opposite directions may appear to have a negative velocity in relationship to each other but any amount of velocity is positive.
Can moment of inertia be negative?
No, moment of inertia cannot be negative as it is a physical quantity that represents an object's resistance to changes in its rotation. Negative values for moment of inertia do not have physical meaning.
Do Both speed and acceleration include the direction of an object's motion?
No. The velocity of an object is how fast it is moving as well as the direction of the motion. So when considering one dimension, the velocity can be positive or negative. The speed of the object is simply the magnitude (absolute value, in the case of one dimension) of the velocity, with no direction. Acceleration is the change in velocity and does include direction. So if an object has a positive velocity (in one dimension) and its speed increases, the acceleration is negative. However, if the speed of an object moving the negative direction increases, then the acceleration is negative, because the velocity becomes "more negative."
Is retardation positive or negative acceleration?
Retardation or deceleration is negative acceleration. It is opposite to the direction of velocity.
How do you describe acceleration in physical science?
Acceleration in physical science is the rate of change of an object's velocity over time. It can be positive (speeding up), negative (slowing down), or even changing direction. Acceleration is a vector quantity, meaning it has both magnitude and direction.
Can momentum have a negative velocity?
No, momentum can not have a negative velocity. Velocity is the rate of motion of a body from one position to another position in a particular direction. Bodies traveling in opposite directions may appear to have a negative velocity in relationship to each other but any amount of velocity is positive.
What is the meaning and formula for deceleration?
Deceleration is the rate of decrease of velocity with respect to time. It is the negative of acceleration. The formula for deceleration is the same as that of acceleration, only that the acceleration is represented as negative. The formula is: - (deceleration) = (final velocity) - (initial velocity) time Therefore, (deceleration) = (initial velocity) - (final velocity) time
Can moment of inertia be negative?
No, moment of inertia cannot be negative as it is a physical quantity that represents an object's resistance to changes in its rotation. Negative values for moment of inertia do not have physical meaning.
Do Both speed and acceleration include the direction of an object's motion?
No. The velocity of an object is how fast it is moving as well as the direction of the motion. So when considering one dimension, the velocity can be positive or negative. The speed of the object is simply the magnitude (absolute value, in the case of one dimension) of the velocity, with no direction. Acceleration is the change in velocity and does include direction. So if an object has a positive velocity (in one dimension) and its speed increases, the acceleration is negative. However, if the speed of an object moving the negative direction increases, then the acceleration is negative, because the velocity becomes "more negative."
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.
Is speed equal to velocity?
Velocity is a vector, which means it has a direction, but speed isn't. Speed is the absolute value of velocity. Velocity can be negative, meaning that the speed is opposite to the direction that you're calling the positive direction.
Is retardation positive or negative acceleration?
Retardation or deceleration is negative acceleration. It is opposite to the direction of velocity.
Acceleration can be defined as the rate at which velocity?
Changes.
How do you calculate turbulence intensity?
Assuming that you have high frequency velocity measurements it's relatively simple. It is simply the ratio of u' to U - meaning the average fluctuating component of the velocity divided by the mean velocity. I = u'/U :)
What is the product of velocity and speed?
Except for the fact that velocity has a direction, velocity and speed have the same units; so you would have a speed squared (plus a direction). As far as I know, this has no physical significance - meaning that you won't normally carry out this multiplication.
What are Statements about acceleration?
Acceleration is the rate of change of velocity with respect to time. Acceleration can be positive (speeding up), negative (slowing down), or zero (constant velocity). Acceleration is a vector quantity, meaning it has both magnitude and direction.
