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Question
An ordinary workshop grindstone has a radius of 7.50 cm and rotates at 6500 rev/min. (a) Calculate the magnitude of the centripetal acceleration at its edge in meters per second squared and convert it to multiples of $g$. (b) What is the linear speed of a point on its edge?
1. $3.47 \times 10^{4}\textrm{ m/s}^2$
$3500 \textrm{ g's}$
2. $51.1 \textrm{ m/s}$
Solution Video