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What else can I help you with?
What is moment of intertia?
The moment of inertia is a property of an object that describes how difficult it is to change its rotational motion. It depends on both the mass distribution of the object and how that mass is distributed relative to the axis of rotation. Objects with larger moments of inertia require more torque to change their rotational motion.
Newton's second law for rotational motion?
Newton's second law for rotational motion states that the net torque acting on an object is equal to the product of the object's moment of inertia and its angular acceleration, similar to how force is related to acceleration in linear motion. Mathematically, this can be written as τ = Iα, where τ represents torque, I is the moment of inertia, and α is the angular acceleration.
Torque vs moment?
In physics, torque and moment are essentially the same thing. Both terms refer to a measure of the rotational effect that a force has, with torque typically used in engineering and mechanics, while moment is more commonly used in physics and mathematics. They both involve a force applied at a distance from a pivot point, resulting in a tendency to cause angular acceleration.
What quantities are needed to calculate angular momentum?
"Rate of change" means that you divide something by time ("per unit time" or "per second"), so you would use the units of angular momentum, divided by seconds.I am not aware of any special name for this concept.
A 2.8kg 40cm diameter disk is spinning at 260 rpm How much friction force must the brake apply to the rim to bring the disk to halt in 2.0s The answer should be in Newtons?
Torque is equal to friction force (F) * radius (r). Torque is also equal to moment of inertia (I) * Angular acceleration (a). Angular acceleration is equal to rotational velocity * 2Pi/time, which is 2 seconds. So, F = IRa/r, or 45.63 Newtons
Why would changing the length of something change the amount of time for it to swing?
Imagine a pendulum, if you will. The longer a pendulum is, the longer it will take to make a full cycle. The converse is also true; if a pendulum is shorter, it will take less time to make a full cycle. The answer lies in the gravitational potential energy of the system, and the moment of inertia of the pendulum. Given a fixed mass at the end of a string with negligible mass, it is apparent that the longer the string is, the greater its moment of inertia (inertial moment is roughly analogous to the inertia of a stationary object). With only a fixed amount of gravitational potential energy to drive the pendulum, the one with a larger moment of inertia will travel slower.
What is the moment of inertia of a disk of radius 12cm and mass 2.4kg from whose edge a circular portion of radius 3cm has been cut off?
It can be done, but it would require taking an integral for the moment of inertia of each particle of the disc... something i don't have the time to do right now ^^;
How can you calculate the inertia constant for ac generator?
Calculating system inertia by mutiplying the Inertia Time Costant [Sgn] of every single generator to calculate the inertia of the generator and sum all inertias to calculate the whole system inertia Calculating system inertia from the RoCoF (post fault calculation)
What the abbreviation of moment?
The abbreviation for "moment" is typically "mo." This abbreviation is commonly used in various contexts, including physics and casual conversation, to refer to a brief period of time. In specific fields, such as engineering, "M" can represent moment in the context of torque or bending moment.
Which is force times time and which is inertia in motion?
Force times time is Impulse Inertia is mass
Explain which has greater interia- a speeding car or a jet airplane?
Inertia is basically resistance of an object to change it's state of motion. The force or moment of inertia each object has is based on one of Newton's classic laws of motion: Force = Mass X Acceleration. It would be dependant on the moment of inertia of either vehicle at the time. A 20000 kg plane moving at 1m per second has the same force as a 2000 kg moving at 10m per second.
What is the equation for inertia?
There are two laws about inertia. The First Law has no formula. It is just a statement that says "an object will continue at constant velocity ,or at rest, until a net force acts on it". This property that requires a force to change its state of motion (or rest) is called the object's "inertia". The Second Law is a formula that describes how an object will move when a net force acts on it. The formula is F = ma. Where, F, is the force and , a , is the objects acceleration. And , m , is the objects mass, which is a measure of the object's inertia. So you could write the formula as a = F/m and in this way you see if the object's mass (inertia) is increased then in order to get the same acceleration you must increase the force. These two laws describe how an object's inertia ,or mass, resists changes in its motion.
