physics

A heavy flywheel rotating on its central axis is slowing down because of friction on its bearings. At the end of the first minute of slowing, its rotational speed is 0.90 of its intial rotational speed of 250 rev/min. Assuming a constant rotational acceleration, find its rotational speed at the end of the first minute.

I am confused on how to start the problem. The 0.90 of its rotational speed is throwing me off. If someone could tell me how to handle that I would apprecitate it.

If you had 12 dollars, and I stole some of it, so you had .9 (or 90 percent) of it left, you would have 12*.9 dollars left.

"of its" means multiply

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asked by laura

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