A grinding wheel of 150 mm diameter is rotating at 3000 rpm. The grind

1.	A grinding wheel of 150 mm diameter is rotating at 3000 rpm. The grinding speed is:
A.	\[7.5\,\pi \,\text{m/s}\]
B.	\[15\,\pi \,\text{m/s}\]
C.	\[45\,\pi \text{m/s}\]
D.	\[450\,\pi \,\text{m/s}\]
Answer» B. \[15\,\pi \,\text{m/s}\]

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A grinding wheel of 150 mm diameter is rotating at 3000 rpm. The grinding speed is:

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