Posted by **sony** on Saturday, October 13, 2012 at 12:16am.

A circular plate of uniform thickness has a diameter of 56cm.A circular portion of diameter 42cm is removed from one edge of the plate .find the position of the center of mass of the remaining portion.

- physics -
**drwls**, Saturday, October 13, 2012 at 5:32am
The removed portion has 3/4 the diameter and 9/16 of the area and mass M of the full circular (56 cm dia) plate.

Measure CM location from the center of the larger full circle. The center of the cutout circular hole is 7 cm from the center of the large circle

[M - (9/16)M]*x = M*0 - (9/16)M*7

(7/16)x = -63/16

x = 63/7 = -9.0 cm

The CM is 9 cm from the center of the large circle, in the opposite direction from the center of the removed circle

## Answer This Question

## Related Questions

- Physics CENTER OF MASS - A thin rectangular plate of uniform areal density σ...
- Math - A circular plate has a diameter of 6 inches. A pancake in the center of ...
- PHYSICS CENTER OF MASS - A thin rectangular plate of uniform areal density σ...
- PHYSICS - An irregularly shaped plastic plate with uniform thickness and density...
- physics - A flat circular plate of copper has a radius of 0.278 m and a mass of ...
- Physics - A circular hole in an aluminum plate is 2.725 cm in diameter at 0.000 ...
- Physics - A thin rectangular plate of uniform area density σ1 = 1.01 kg/m2 ...
- physics - A thin rectangular plate of uniform area density σ1 = 1.00 kg/m2 ...
- physics Only one part left !!!!!! PLZ HELP - A uniform, square metal plate with ...
- physics Only one part left !!!!!! PLZ HELP - A uniform, square metal plate with ...

More Related Questions