Thursday

July 24, 2014

July 24, 2014

Posted by **Anonymous** on Thursday, March 25, 2010 at 5:00pm.

- physics help please!!! -
**bobpursley**, Thursday, March 25, 2010 at 5:39pmchose your moment of Inertia model. I think solid disk is a good model. I= 1/2 mr^2

angMomentum= I*angvelocity

where w (angular velocity)=2PI*1200/60 rad /seconds

Torque=momentinertia*angularacceleration

= 1/2 m r^2 * change in angvelocity/time

= 1/2 m r^2 * (wf-wi)/5.7sec

wf=0 ; wi is 2PI*1200/60 rad/sec

**Related Questions**

PHYSICS - What is the angular momentum of a 2.7 kg uniform cylindrical grinding ...

Physics - What is the angular momentum of a 2.4 kg uniform cylindrical grinding ...

Physic Angular momentum and torque - What is the angular momentum of a 1.0kg ...

U. Phys - What is the angular momentum of a 3.7kg uniform cylindrical grinding ...

Physics - An electric motor rotating a workshop grinding wheel at a rate of 95 ...

Physics - A 4.0 kg wheel of 20 cm radius of gyration is rotating at 360 rpm. The...

Physics - A 4.0 kg wheel of 20 cm radius of gyration is rotating at 360 rpm. The...

college physics - A particular grinding wheel is a uniform solid disk of radius ...

physics - An electric motor rotating a workshop grinding wheel at a rate of 9.80...

physic angular momentum and torque - What is the angular momentum of a figure ...