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Why the velocity of fluid is zero at stationary boundary?
NageshPratheekfb4019
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What is the no-slip condition that all fluids satisfied?
A moving fluid will take zero velocity with respect to solid boundary when sticks with that solid surface.
Does a stationary object has interia and momentum?
A stationary object has inertia, but not momentum. Momentum is the product of (mass) times (velocity). If the velocity is zero, then the momentum is zero.
Why can velocity be zero?
Something may be completely stationary relative to its frame of reference.
The net force acting on an stationary object is zero Which best describes the object's velocity?
In that case, the object's velocity won't change.
Can a body have zero velocity and still be accelerating?
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
Zero velocity means vehicle must be stationary?
Zero velocity means that the vehicle and the person who is measuring the velocity are moving together.
What is an object that's not moving?
A stationary object with velocity of zero.
What is the no-slip condition that all fluids satisfied?
A moving fluid will take zero velocity with respect to solid boundary when sticks with that solid surface.
Does a stationary object has interia and momentum?
A stationary object has inertia, but not momentum. Momentum is the product of (mass) times (velocity). If the velocity is zero, then the momentum is zero.
Why can velocity be zero?
Something may be completely stationary relative to its frame of reference.
What is a velocity potential?
A velocity potential is a scalar function whose gradient is equal to the velocity of the fluid at that point. If a fluid is incompressible and has zero viscosity (an ideal fluid) its velocity as a function of position can always be described by a velocity potential. For a real fluid this is not generally possible.
The net force acting on an stationary object is zero Which best describes the object's velocity?
In that case, the object's velocity won't change.
Can a body have zero velocity and still be accelerating?
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
Why is the average velocity of the molecules in a gas is zero but the average of the square velocity not zero?
The gas molecules are in motion but if the total gas volume is stationary (Eg. closed in a container) the average gas velocity is zero. And since the square of any number is never negative. And not all molecules have zero velocity at a time. Therefore, since not all numbers are zero and no number is negative the the average of numbers should be a positive number and will not be zero.
How Can you tell from a velocity-time graph that the velocity is constant?
velocity is nothing but speed of a body in the given direction. suppose if body is moving with constant velocity then VT graph will be parallel to the X -axis, if not then the VT graph is not parallel to the X-axis it means then object is moving with different velocity or it has its dierection or both velocity and aswell as direction.
Can you tell from a velocity-time graph whether an object is stationary?
If the curve is horizontal, then the speed is constant. If that horizontal graph lies on the x-axis, then the constant speed is zero, and the object is stationary.
Can constant velocity be zero?
Yes. Zero velocity is a velocity; if it is always zero then it is a constant velocity.
