Posted by **Natasha** on Monday, April 2, 2012 at 10:09pm.

A grindstone of radius 4.0m is initially spinning with an angular speed of 8.0 rad/s. The angular speed is then increased to 12 rad/s over 4.0s. Assume that the angular acceleration is constant. What is the average angular speed of grindstone?

## Answer this Question

## Related Questions

- physics - A wind turbine is initially spinning at a constant angular speed. As ...
- Physics - A wind turbine is initially spinning at a constant angular speed. As ...
- Physics - A dentist causes the bit of a high-speed drill to accelerate from an ...
- Physics(Please help) - A dentist causes the bit of a high-speed drill to ...
- physics - A disk rotates about its central axis starting from rest and ...
- physics - A machine part rotates at an angular speed of 0.38 rad/s; its speed is...
- physics - A dentist causes the bit of a high-speed drill to accelerate from an ...
- Physics - A dentist causes the bit of a high-speed drill to accelerate from an ...
- science- physics - A rotating wheel requires 4.17 s to rotate through 37 rev. ...
- physics - A machine part rotates at an angular speed of 0.77 rad/s; its speed is...

More Related Questions