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Is the tangential velocity of a rotating object greater when it is close to the center of rotation or when it is far from the center of rotation?
Wiki User
∙ 12y ago
The tangential velocity is greater as the radius of the point on the rotating object increases.
For a rotating object
v = rw
Where v is the tangential velocity
r is the radius of the point
And "w" is omega or angular velocity (in radians per second)
Wiki User
∙ 12y ago
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meteors may be seen every night, preferably just before dawn, when their apparent velocity will be greater because of the rotation of the Earth. Thousands each night.
Is the greater an objects velocity the stronger the gravitational force on it?
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How does a space shuttle accelerate in space?
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What is tangential speed?
Linear speed is the distance traveled per unit of time, while tangential speed (or tangential velocity) is the linear speed of something moving along a circular path.[5] A point on the outside edge of a merry-go-round or turntable travels a greater distance in one complete rotation than a point nearer the center. Traveling a greater distance in the same time means a greater speed, and so linear speed is greater on the outer edge of a rotating object than it is closer to the axis. This speed along a circular path is known as tangential speed because the direction of motion is tangentto the circumference of the circle. For circular motion, the terms linear speed and tangential speed are used interchangeably, and both use units of m/s, km/h, and others.Rotational speed (or angular speed) involves the number of revolutions per unit of time. All parts of a rigid merry-go-round or turntable turn about the axis of rotation in the same amount of time. Thus, all parts share the same rate of rotation, or the same number of rotations or revolutions per unit of time. It is common to express rotational rates in revolutions per minute (RPM) or in terms of the number of "radians" turned in a unit of time. There are little more than 6 radians in a full rotation (2π radians exactly). When a direction is assigned to rotational speed, it is known as rotational velocity or angular velocity. Rotational velocity is a vector whose magnitude is the rotational speed.Tangential speed and rotational speed are related: the greater the RPM's, the larger the speed in meters per second. Tangential speed is directly proportional to rotational speed at any fixed distance from the axis of rotation.[6] However, tangential speed, unlike rotational speed, depends on radial distance (the distance from the axis). For a platform rotating with a fixed rotational speed, the tangential speed in the center is zero. Towards the edge of the platform the tangential speed increases proportional to the distance from the axis.[7] In equation form:where v is tangential speed and ω (Greek letter omega) is rotational speed. One moves faster if the rate of rotation increases (a larger value for ω), and one also moves faster if movement farther from the axis occurs (a larger value for r). Move twice as far from the rotational axis at the center and you move twice as fast. Move out three times as far and you have three times as much tangential speed. In any kind of rotating system, tangential speed depends on how far you are from the axis of rotation.When proper units are used for tangential speed v, rotational speed ω, and radial distance r, the direct proportion of v to both r and ω becomes the exact equationThus, tangential speed will be directly proportional to rwhen all parts of a system simultaneously have the same ω, as for a wheel, disk, or rigid wand. (The direct proportionality of vto r is not valid for planets, because planets have different rotational speeds).
Is a velocity of -7 greater or a velocity of -3 greater?
-4
A tappered cup rolled on a flat surface makes a circular path What does this tell you about the tangential speed of the rim of the wide end of the cup compared with that of the rim of the narrow end?
The wider part of the cup has a greater radius, rolls a greater distance per revolution and therefore has a greater tangential speed.
How does the tapered rim of the wheel on a railroad train allow one part of the rim to have a greater tangential speed than another part when it is rolling on a track?
Tangential speed, unlike rotational speed, depends on radial distance. At the very center of the rotating platform, you have no speed at all; you merely rotate. But, as you approach the edge of the platform, you find yourself moving faster and faster. Tangential speed is directly proportional to distance from the axis for any given rotational speed. (https://sites.google.com/site/reyesmityville/physics)
What would happen if a projectile were thrown with greater velocity?
A projectile thrown with a greater velocity would travel a greater distance. Velocity is not just speed but direction as well.
What would happen if the projectile were thrown with greater velocity?
A projectile thrown with a greater velocity would travel a greater distance. Velocity is not just speed but direction as well.
What would happen if the projectile were thrown with a greater velocity?
A projectile thrown with a greater velocity would travel a greater distance. Velocity is not just speed but direction as well.
If two roller coasters have the same mass the one with the greater what will have a greater Kinetic energy?
The one with the greater velocity will have the greater kinetic energy.
How often does shooting stars occur?
meteors may be seen every night, preferably just before dawn, when their apparent velocity will be greater because of the rotation of the Earth. Thousands each night.
Is distance directly proportional to velocity?
Distance Traveled is directly proportional to velocity. This is because velocity is the change in position over a period of time. The greater the velocity, the greater the distance traveled. For you calculus junkies, integrate velocity to get displacement.
What happens to the terminal velocity if the weight is greater?
Other things (the volume and shape) being equal, a greater weight would cause a greater terminal velocity.
What happen to velocity if the KE was 16 times greater?
The magnitude of the velocity was quadrupled.
