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# What are some of the overcorrections that most frustrate you?

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In Rotation

# What is angular velocity and radial velocity?

Angular velocity is the rate of change of angle of a body, i.e. omega = v / r = (2*pi*r)/ r*t = (2*pi)/ Twhere T is the time period of whatever is rotating and r is the radi…us of the circle.So if a circular disc is spinning at 1 m/s then the angular velocity of it is 2*pi radians/ secondRadial velocity is the velocity in m/s at the radius of the circle i.e. radial velocity v = omega*r = (2*pi*r)/ T (equivalent to speed = distance/ time where in this case distance is the circumference of the circle and time is the time period of one rotation)----------------------------------------------------------------------------------------------------Angular velocity Ï‰, is the rate of change of angular displacement dÏ†/dt. Itspecifies the angular speed (rotational speed) of an object and the axis about which the object is rotating. Ï‰ = 2Ï€f =2Ï€/T [=] rad/s where f is the rotation frequency (rev/s) and T the time it takes to make a revolution (s/rev). Tangential velocity v. When an object rotates around in a circle with radius r, itslinear velocity tangent to the circle is the tangent velocity v. v = Ï‰r [=] m/s Radial velocity vr, is the component of the velocity of an object away or towardthe origin or point of observation. (MORE)

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In Physics

# How do you define angular velocity and angular speed?

Angular velocity is given as radians per second; angular speed is also the same thing. Velocity is a vector with magnitude and direction and speed a scalar with magnitude only…. The magnitude is identical; velocity will define the direction of rotation ( clockwise or counterclockwise). (MORE)

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In Rotation

# Is angular speed the same as angular acceleration?

No. Acceleration and speed are related in the same way irrespective of being linear or angular. Acceleration is rate of change of speed.

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In Hybrids

# Test Drive Results 2014 Chevy Spark Electric

To start, it's important to note that an All Electric Car usually has 100 percent torque at zero rpm. Yet some electric case compromise on acceleration and durability. This is… the electric car that does not compromise. The Chevy Spark electric car performs like a 1957 Chevy. The acceleration from (MORE)

In Dryers

# Should You Choose a Gas or Electric Dryer?

You've got to buy a new dryer. Maybe you just bought a new house. Maybe you have to replace a failing unit. Either way, you have an opportunity to get the dryer of your dreams…. What do you look for in the new unit? What features are the best? Your (MORE)

In Wiring

# 5 Common Wire Connectors

For any electronic device to work, you need a power source. You also will need electric wiring from the power source to the equipment being powered. And because various applic…ations call for different types of electric wire connectors, it's important to know which one to use. This list has some (MORE)

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In Astronomy

# At what angular velocity would the earth have to rotate about its axis for a body at the equator to feel no weight?

You can calculate it yourself, with the formula for acceleration in uniform circular motion. The centripetal acceleration, with circular motion, is v2 / r (velocity squared di…vided by the radius). Since the Earth's gravitation is about 9.8 meters per second square, solve the equation v2 / r = 9.8, for variable v. r (radius, of the Earth) should be converted to meters. The velocity will be in meters per second. Note that this exercise assumes the Earth is rigid. In practice, if Earth really rotated that fast, it would flatten out a lot, and in fact be torn apart. (MORE)

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In Physics

# What is the dimension of angular velocity?

The dimension of angular velocity is reciprocal time . . . 1/time or T-1 . It'll be stated as "some angle" per "unit of time", like "45 revolutions per minute", and angles a…re dimensionless. (MORE)

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In Science

# When angular velocity decreases the direction of angular acceleration is opposite to angular velocity .why?

Take the velocity to be in positive direction. Positive acceleration increases velocity and they are in the same direction. Negative acceleration reduce velocity and they ar…e in opposite direction. It does not matter if the motion in linear or anfular. (MORE)