Question

Which of the following is not equivalent to the formula for angular velocity, v = wr?

vw = r
v over w= r
v over w r= 1
v over r= w

Answer 1

\[\Large v=w \cdot r\]if we divide both sides by w, we get:\[\Large \frac vw=r\]

instead, if we had divided both sides by (w r), we'd get:\[\Large {v \over w \cdot r}=1\]

instead, if we had divided both sides by (w r), we'd get:\[\Large {v \over r}=w\]

Answer 2

the only thing we can't get from v=wr is:
vw=r

Answer 3

Wait a second. Can we divide by a vector?