Posted by Sandhya on Thursday, October 30, 2008 at 6:30am.
A wheel of radius 0.5 m rotates with a constant angular speed about an axis perpendicular to its
center. A point on the wheel that is 0.2 m from the center has a tangential speed of 2 m/s.
(a) Determine the tangential speed of a point 0.4 m from the center of the wheel.
(b) Determine the tangential acceleration of the point that is 0.2 m from the center.

physics  bobpursley, Thursday, October 30, 2008 at 7:29am
Use the .5m radius to calculate the moment of inertia. Use the radius of .4 (or on b of .2) to find tangential speed (w*r)

physics  Sandhya, Thursday, October 30, 2008 at 8:27am
What is the role of Moment of inertia here?
Am I right if I say that the tangential speed is the same 2 m/s & the tangential acceleration zero ?

physics  bobpursley, Thursday, October 30, 2008 at 8:29am
You are correct. moment of inertia is not in the picture, acceleration tangential is zero. Good point.
Answer This Question
Related Questions
 physics  A wheel rotates without friction about a stationary horizontal axis at...
 Physics  an automobile tire has a radius of 0.350M, and its center forward with...
 Physics Angular Momentum  A bullet with a mass m = 4.83 g and initial speed of ...
 Physics  A bullet with a mass m = 4:83 g and initial speed of 330 m/s passes ...
 Physics Angular Motion  A wheel with a radius of 1.5m rotates at uniform ...
 physics  a merry go round wheel rotates with an angular speed of 2 rad/s. ...
 physics  a wheelof diameter 0.70 meterolls without slipping. a point at the top...
 physics  A wheel of 40cm radius rotates on a stationary axle. It isuniformly ...
 physics  A wheel of 40cm radius rotates on a stationary axle. It isuniformly ...
 math  a wheel is making 300rev/min about its center, calculate the angular ...
More Related Questions