Question

Trig:
A point is rotating with uniform circular motion on a circle of radius r.
Find w (omega) if r = 6 cm and v = 3 cm/sec
Help me set it up please

Answer 1

r = 6cm
v = 3cm/sec
it takes you 4 seconds for 1 rotation
4 seconds = 1 period
w = 2 * Pi / Periodlength
w = 2* Pi / 4 = Pi /2 = 1.57

Answer 2

How do you know it takes you 4 seconds for 1 rotation?

Answer 3

r = 6cm , the diameter is r * 2 = 12
12 /v = 4

Answer 4

by the way the answer is 0.5 rad/sec that is why I'm kind of confuse

Answer 5

yeah its the same haha.
r = 6, v = 3cm/sec
v = 0.5rad/sec

Answer 6

btw. v = 0.5rad/sec is not the answer . you want to find omega.

Answer 7

that is what it says on the book