Saturday

March 28, 2015

March 28, 2015

Posted by **anonymous** on Wednesday, December 5, 2012 at 9:06pm.

(a) What is the moment of inertia of the wheel?

(b) What is the mass of the wheel?

(c) If the wheel starts from rest, what is its angular velocity after 4.00 s have elapsed, assuming the force is acting during that time?

- Physics -
**Jennifer**, Friday, December 7, 2012 at 5:06pmtorque = F*r = I*alpha

where F = force, r = radius, I = moment of inertia, and alpha is angular acceleration.

a)

For a cylinder I = 1/2*m*r^2, where m is mass

b)

F*r = 1/2*m*r^2*alpha

Substitute values from the problem to find m

c) omega = alpha*t

where omega is angular velocity

**Answer this Question**

**Related Questions**

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

Physics- Elena please help! - A large grinding wheel in the shape of a solid ...

Physics - A large grinding wheel in the shape of a solid cylinder of radius 0....

Physics - A solid cylinder is pivoted at its center about a frictionless axle. A...

Physics - A solid cylinder is pivoted at its center about a frictionless axle. A...