Rotation - collision with an obstacle

Thread starter cupid.callin
Start date Mar 28, 2011
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Collision Rotation

In summary, rotation is the circular movement of an object around a fixed point or axis, and it can occur when an object collides with an obstacle. The angle of rotation can greatly impact the severity and outcome of a collision, and rotation can also affect the trajectory of an object after a collision. The rotational energy during a collision can be calculated by multiplying the moment of inertia by the angular velocity squared. Studying rotation and collisions with obstacles has real-world applications in engineering, physics, and sports.

Mar 28, 2011

cupid.callin

Homework Statement

attachment.php?attachmentid=33660&stc=1&d=1301349871.jpg

The Attempt at a Solution

First i thought i could apply conservation of momentum about O

but about O ... mg has a torque ... now what to do ?

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Mar 28, 2011

tiny-tim

Science Advisor

Homework Helper

hi cupid.callin!

cupid.callin said:

but about O ... mg has a torque ...

but not an impulsive torque

1. What is rotation and how does it relate to collisions with obstacles?

Rotation is the circular movement of an object around a fixed point or axis. When an object collides with an obstacle, it can cause the object to rotate due to the impact and force applied.

2. How does the angle of rotation affect collisions with obstacles?

The angle of rotation can greatly impact the severity and outcome of a collision with an obstacle. If an object is rotating at a high speed and collides with an obstacle at a perpendicular angle, it can result in a more forceful impact and potentially cause damage to the object or obstacle.

3. Can rotation affect the trajectory of an object after a collision with an obstacle?

Yes, rotation can greatly affect the trajectory of an object after a collision with an obstacle. Depending on the angle and speed of rotation, the object can be redirected or even bounce off the obstacle in a different direction.

4. How can you calculate the rotational energy of an object during a collision with an obstacle?

The rotational energy of an object during a collision with an obstacle can be calculated by multiplying the moment of inertia (a measure of how difficult it is to change an object's rotation) by the angular velocity (how fast the object is rotating) squared.

5. What are some real-world applications of studying rotation and collisions with obstacles?

Understanding the principles of rotation and collisions with obstacles is crucial in fields such as engineering, physics, and sports. It can help engineers design safer structures and vehicles, physicists predict the outcome of collisions in particle accelerators, and athletes improve their technique and avoid injuries.