Tuesday

July 22, 2014

July 22, 2014

Posted by **José** on Wednesday, March 21, 2012 at 10:32pm.

- Physics -
**drwls**, Wednesday, March 21, 2012 at 11:10pmIn 6.5 seconds, potential energy loss = 0.4 kg*2.0m *g = 7.84 J

Final velocity of mass:

Vf = 2*2m/6.5s = 0.6154 m/s

(twice the average velocity)

Final angular velocity of wheel:

Wf = Vf/R = 4.10 rad/s

K.E. gain = P.E loss

(M/2)Vf^2 + (I/2)Wf^2 = 7.84 J

Solve for moment of inertia, I.

**Related Questions**

12th grade - A bicycle wheel has a radius of 0.330 m and a rim whose mass is 1....

physics - A large wooden wheel of radius R and the moment of inertia I is ...

physics - A wheel rotates without friction about a stationary horizontal axis at...

college Physics - A disk with a mass of 1300 g and radius 0.7 m has a block of ...

Physics. PLEASE HELP!! - A 1.2 m diameter wagon wheel consists of a thin rim ...

mechanics - a fly wheel of mass 66kg and 2m radius makes 55rpm.assuming mass is ...

Physics - A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0)...

physics - A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0...

Physics - A cord is wrapped around the rim of a wheel .250 m in radius, and a ...

Physics... rotation - A constant force of 40 N is applied tangentially to the ...