Translational and Rotational Energy

AI Thread Summary
The discussion centers on the relationship between translational and rotational energy in a sliding cylinder. It highlights that an initial blow can impart both rotation and sliding motion, with friction eventually slowing the sliding while allowing the rotation to enhance translational velocity. There is confusion regarding how friction affects energy, with a concern that it might reduce both rotational and translational speeds. The conversation indicates a need for clarity on the dynamics of sliding versus non-slipping objects. Understanding these principles is essential for grasping the mechanics involved in such scenarios.
hatephysics
Messages
9
Reaction score
0
solved. thank you
 
Last edited:
Physics news on Phys.org
Well, if the initial blow imparted a sizeable rotation, AND the cylinder was sliding on the ground, (while rotating) eventually the sliding would slow due to the friction with the ground and the cylinder's rotation could contribute to its translational velocity.
 
AEM said:
Well, if the initial blow imparted a sizeable rotation, AND the cylinder was sliding on the ground, (while rotating) eventually the sliding would slow due to the friction with the ground and the cylinder's rotation could contribute to its translational velocity.

Thank You for taking the time to reply.

But, I still don't quite get this. Wouldn't the friction cause the cylinder to have less energy and, therefore, a slower cylinder rotation and a slower translational velocity? Maybe, it is because I don't quite understand rotations involving objects that slide? Currently, I am only dealing with objects that do not slip.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Determine energy required to stop rolling mass
Replies
10
Views
648
Kinetic Energy of a Cylinder Rolling Without Slipping
Replies
21
Views
4K
Total KE = Sum of Translational & Rotational KE: Proving the Equation
Replies
4
Views
2K
Question about springs and rotational/translational energy
Replies
4
Views
1K
Heat added to system increases mass
Replies
12
Views
1K
A cylinder rotating on a plane with friction and then moving across a frictionless plane to a collision
Replies
1
Views
744
Understanding work in translation and rotation of a magnetic dipole
Replies
1
Views
2K
Possible to use work-energy theorem from a non-inertial frame?
Replies
1
Views
2K
What Causes the Loss of Mechanical Energy in a Frictionless Spinning Cylinder?
Replies
6
Views
1K
The Role of Friction in Rotational Motion
Replies
11
Views
3K

Hot Threads

Recent Insights

Back
Top