# Quick question regarding tangential acceleration

1. Jul 2, 2008

### ace123

What is the force that is responsible for the tangential acceleration? And how does this acceeleration work. I mean this must increase the object's linear velocity right? Since it acts parallel to it. Can someone help clarify this for me.

Thanks

2. Jul 2, 2008

### mathman

What you say is correct. However, the force could by anything that acts along the path of the object, such as a jet engine or the oars of a rowboat.

3. Jul 2, 2008

### Mr Noblet

I think torque is responsible for tangential acceleration. Increased torque will increase tangential acceleration.

4. Jul 2, 2008

### ace123

So would any object that is rotating experience a tangential acceleration? Or does it need a force to be applied like in an example of a bicycle wheel?

5. Jul 2, 2008

### ace123

Torque is equal to the perpendicular force times the distance r from the axis of rotation to the point of application of the force. I believe you got tangential acceleration confused with angular acceleration.

Or maybe I'am wrong.:rofl:

Edit: Yes I'am wrong because I just read that tangential acceleration = r times angular acceleration.

Thanks

Last edited: Jul 2, 2008