Grinding Wheel
March 3rd, 2010
What is linear speed of point on edge of .4 m diameter grinding wheel rotating at 1900 rpm?
Also, what is the acceleration of the point?
v = rω
v ≈ (0.2 m)(1,900 rev/min)(2π rad./rev.(1 min/60 s)
v ≈ 39.79351 m/s ≈ 39.8 m/s
If the angular velocity is constant,
a = rω^2 = (v^2)/r
a ≈ ((39.79351 m/s)^2)/(0.2 m)
a ≈ 7,917.616 m/s^2 ≈ 7,920 m/s^2
towards the center.
How to Sharpen Tools : Using a Grinding Wheel to Sharpen Tools
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