Warning: Non-descriptive thread title
Which equation is valid only when the angular measure is expressed in radians?
a) α = Δθ / Δt
b) ω= Δω / Δt
c) ω^2 = ωo^2 + 2αθ
d) ω = Vt/r (here T is a subscript)
e) θ = 1/2αt^2 + ωαt
Answer is D but why??
I know angles can be measured in either degrees or radians
The Attempt at a Solution
angular velocity = ? divided by radius
I guess I don't understand what Vt is