Answer:
v = rω
Explanation:
The arc length covered in circular motion is related to the central angle turned by the body, through following equation or relation:
s = rθ
where,
s = arc length or linear displacement
r = radius of the path
θ = central angle turned by body
here, we have a cell surface that is slipping along endothelium and follows a circular path with radius r. So, we can apply the given relation here:
s = rθ
taking derivative on both sides with respect to time we get:
(ds/dt) = r dθ/dt
v = rω
where,
v = translational velocity
ω = angular velocity
