Recent content by etothey1

Hi! thanks for you're response. I integrated from a to negative a because it is a line integral and the curve is from a to negative a (because the current flows in that direction) therefore I integrated along the direction of the current ( also because my problem is set up to be integrated like...

I should remove the sign in dl=-dly, that will fix things, and also makes the magnetic field at point p be appropriate.

Homework Statement A square coil of wire of side length 2a lies in the yz plane. A current I flows through the loop. The x-axis is defined such that it passes through the centre of the loop, with the loop boundaries being at z±a and y=±a respectively. Given that I flows in a direction...

Yep, thank you very much for you're help.

So the only way that I can fix this at this point is if I immidietly after t=0 force the rotational velocity up so that it decreases linearly as well along with the translational velocity. This will allow the rolling motion and the translational motion to cease at the same time. If this...

Ok, So what would be wrong in my solution then? My solution says that the linear velocity decreases linearly and the rotational velocity increases linearly. The thing that bothers me is I find it very weird that when the ball has no linear velocity, it has rotational velocity. Also, You said...

Because of the frictious force between the table and the sphere, the sphere will start rolling, because there will be a torque exerted on the sphere. The linear velocity of the sphere is related to its rolling motion. Therefore, I must have made a mistake thinking that the ball was rolling, but...

Homework Statement A spherical billiard ball radius a and mass M is sitting on a flat surface. The coefficient of friction between the ball and table is u. The moment of inertia for the billiard ball is 2Ma^2/5. The ball is given a sharp horizontal hit at the centre and it starts moving with...