trig
posted by John .
How do you find 2.8 revolutions per second in radians? I understand that two revolutions would be equal to 4pie but how do you find the 0.8?

You have the right idea. one revolution is 2(pi) radians.
Converting revolutions to radians:
R=revolutions
Revolutions in Radians=R*2(pi)
So, to convert 2.8 revolutions/sec to radians
=2.8(2)(pi)/sec