A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.10*10^4 to an angular speed of 3.61*10^4 rad/s. In the process, the bit turns through 1.83*10^4 rad. Assuming a constant angular acceleration, how long would it take the bit to reach its maximum speed of 9.49*10^4 rad/s, starting from rest?
Calculate the magnitude of the resultant of all forces acting on the object
Calculate the magnitude of the resultant of all forces acting on the object