Recent content by cholo1968

Homework Statement When you slam on the brakes your car decelerates but this is not constant as it starts at a higher value and then reduces. This has something to do with the coefficient of friction between the brakes and the discs, but what is it and what are the reasons for this...

Thankyou OldEngr63. After looking at the problem again and using your guidance I achieved the correct answer to within 0.01. I was not looking far enough in front of me at the whole problem. Thakyou again.

[b]1. Sphere inner core radius 3490km and density 13000kg/m3. Outer radius 6400km and density 4000kg/m3. Show that the moment of inertia is approximately 8 x 1037kg m2. [b]2. I know that the moment of inertia of a sphere is 2/5xmr2. [b]3. I have calculated the volume for each part...