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darkmagic
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Homework Statement
Which is equal to zero if angular velocity is constant, normal or tangential acceleration?
The one with zero angular velocity is a crank. The crank moves at a fixed point.
darkmagic said:The Attempt at a Solution
darkmagic said:I think it is the tangential one because that means it is a uniform motion but continuously changing speed? is that correct?
darkmagic said:sorry it should be constant velocity. changing direction but constant speed, right?
darkmagic said:velocity is changing. If that is changing, acceleration is also changing?
darkmagic said:Normal acceleration is always towards the fixed point. The normal one?
darkmagic said:Can you give a summary on how to determine which is zero among the two in different situations?
How can I determine the tangential acceleration if I have given the angular velocity?
darkmagic said:so, if normal is zero, then tangential equals the angular acceleration. I only depend on the tangential and normal formula.
darkmagic said:so normal is zero in a sliding block?
darkmagic said:i mean in a mechanism, in a flat surface. the sliding block has zero normal? I'll be back.
darkmagic said:I mean in a mechanism, the sliding block, the normal in a flat surface is zero?
darkmagic said:its only a sample, only a schematic drawing.
darkmagic said:its only a sketch angular velocity at 2 is constant
Angular velocity is a measure of the rate of change of angular displacement with respect to time. It is typically represented by the Greek letter omega (ω) and is measured in radians per second.
Angular velocity and linear velocity are related through the equation v = ωr, where v represents linear velocity, ω represents angular velocity, and r represents the radius of the rotating object.
If angular velocity is constant, it means that the rate of change of angular displacement remains the same over time. In other words, the rotating object is moving at a constant speed and in a uniform circular motion.
If an object is not rotating, its angular displacement is not changing over time. This means that the rate of change of angular displacement, or angular velocity, is zero.
Yes, angular velocity can be negative. A negative angular velocity indicates that the object is rotating in the opposite direction of the chosen reference direction. A positive angular velocity indicates a rotation in the same direction as the reference direction.