Path Array

Evenly destributes object copies along a path

Arc: 5,000 Start-End Radius 10,000
Rectabgle: 500 x 250

Modify panel > Path Array

Select the rectangle
Press Enter

Select the path curve

Rectangle array evenly along the path, but not tabgent

Array Creation tab > Properties panel > Tangent Direction

Pick the midpoint of the rectangle as the 1st point

Pick the endpoint of the rectangle as the 2nd point

By default set as measure mode
You can adjust the spacing between objects

Change to Divide mode
You can adjust the item number array along the path