Rotational motion (flywheel) problem

In summary, rotational motion is the movement of an object around a fixed axis, while a flywheel is a mechanical device used to store rotational energy. Flywheels work by storing energy in the form of rotational motion and have various applications in vehicles and industrial machinery. To solve rotational motion problems involving flywheels, one must use principles of rotational dynamics and apply Newton's laws and equations of motion.
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  • #2
The question is bascially asking how much energy is required to travel 350km, with a frictional force of 450N while acclerating from 0 to 95km/h twenty times. You know that all the energy will be 'stored' as rotational kinetic energy and will be converted to work done at the end of the trip.

-Hoot:smile:
 
  • #3
Thank you.
 

1. What is rotational motion?

Rotational motion is the movement of an object around a fixed axis, such as a wheel spinning on its axle. It is different from linear motion, which involves movement in a straight line.

2. What is a flywheel?

A flywheel is a mechanical device that is used to store rotational energy. It consists of a heavy wheel mounted on a fixed axis, and its purpose is to maintain a consistent speed of rotation in a machine or vehicle.

3. How does a flywheel work?

A flywheel works by storing energy in the form of rotational motion. When a force is applied to the flywheel, it begins to spin, and the energy is stored in its rotational motion. This stored energy can then be used to power other parts of a machine or vehicle.

4. What are some applications of flywheels?

Flywheels have a variety of applications, including in vehicles such as cars and bicycles, where they help to maintain a consistent speed and improve overall efficiency. They are also used in industrial machinery, such as generators and pumps, to store and release energy as needed.

5. How do you solve rotational motion (flywheel) problems?

To solve rotational motion problems involving flywheels, you will need to use the principles of rotational dynamics, which include torque, angular acceleration, and moment of inertia. You will also need to apply Newton's laws of motion and equations of motion to calculate the final velocity, acceleration, and other relevant quantities.

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