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A dentist causes the bit of a high-speed drill to accelerate from an angular speed of...

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Physics

A dentist causes the bit of a high-speed drill to acceleratefrom an angular speed of 1.46 x 104 rad/s to an angular speed of3.29 x 104 rad/s. In the process, the bit turns through 3.02 x 104rad. Assuming a constant angular acceleration, how long would ittake the bit to reach its maximum speed of 9.56 x 104 rad/s,starting from rest?

Answer & Explanation Solved by verified expert
4.1 Ratings (734 Votes)
Step 1Find angular acceleration of drill machineUsing 3rd rotational kinematic equationwf2 wi2    See Answer
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