A 1000-kg car travelling at a speed of 32 ms skids to a, Ask an Expert

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Q. A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks?

Q. A disk, initially rotating at 114rad/s, is slowed down with a steady angular acceleration of magnitude 2.53rad/s2. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate all through that time?

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