asianese
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This was in our test but I can't understand it. It was ... MC!! Got it wrong lol
The angular speed of a grindstone is 1800rev/min. The diameter of the grindstone is 10cm. Calculate the linear speed of a point on the rim of the grindstone in metres per second.
A 0.24m/s
B 1.5m/s
C 9.4m/s
D 18.8m/s
The supposed answer is D. Here is my working.
Any help is appreciated. Thanks
The angular speed of a grindstone is 1800rev/min. The diameter of the grindstone is 10cm. Calculate the linear speed of a point on the rim of the grindstone in metres per second.
A 0.24m/s
B 1.5m/s
C 9.4m/s
D 18.8m/s
The supposed answer is D. Here is my working.
Any help is appreciated. Thanks
