Rotational Motion Problem - 10

In summary, rotational motion is the movement of an object around an axis or center point. Torque is a measure of the force that causes rotational motion, calculated by multiplying the force applied to an object by the distance from the axis of rotation. It differs from linear motion in that it involves movement around an axis and considers torque and angular velocity instead of force and velocity. Moment of inertia is a measure of an object's resistance to changes in rotational motion, influenced by its mass and distribution of mass around its axis of rotation. Rotational motion is used in various everyday objects and activities, as well as in larger scale applications such as the rotation of the Earth and planets.
  • #1
coldblood
133
0
Hi friends,
Please help me in solving this problem, I'll appreciate the help.

The problem is as:

https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1470353_1461727604054345_1173881292_n.jpg

Attempt -

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn2/q71/s720x720/1487447_1461727740720998_1698365428_n.jpg


Thank you all in advance.
 
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  • #2
hi coldblood! :wink:

very good! :smile:

but your m is … ? :rolleyes:​
 
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  • #3
tiny-tim said:
hi coldblood! :wink:

very good! :smile:

but your m is … ? :rolleyes:​

Oh man, I think I would be solving this with unconscious mind. Sorry for that mistake and thanks a lot.
 

1. What is rotational motion?

Rotational motion is the movement of an object around an axis or center point.

2. What is torque?

Torque is a measure of the force that causes rotational motion. It is calculated by multiplying the force applied to an object by the distance from the axis of rotation.

3. How is rotational motion different from linear motion?

Rotational motion involves movement around an axis, while linear motion involves movement in a straight line. Additionally, rotational motion involves torque and angular velocity, while linear motion involves force and velocity.

4. What is moment of inertia?

Moment of inertia is a measure of an object's resistance to changes in rotational motion. It is influenced by an object's mass and distribution of mass around its axis of rotation.

5. How is rotational motion used in real life?

Rotational motion is used in many everyday objects and activities, such as the rotation of a wheel on a car, the spinning of a top, or the swinging of a pendulum. It is also used in larger scale applications, such as the rotation of the Earth on its axis and the rotation of planets around the sun.

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