Posted by James on .
If rotational speed of a disc remains constant, what happens to the speed of a point on the disc if its distance from the axis is doubled?
It stays the same
It also doubles
It triples
It quadruples

pHYSICS hELP rATIONAL SPEEDS OF DISKS 
bobpursley,
velocitytangential= rotationalvelocity*radius

pHYSICS hELP rATIONAL SPEEDS OF DISKS 
first,
it also double

pHYSICS hELP rATIONAL SPEEDS OF DISKS 
nnnnnn,
The quantity of space on object occupies