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:
taking derivative on both sides with respect to time we get:
(ds/dt) = r dθ/dt
<u>v = rω</u>
v = translational velocity
ω = angular velocity
Calculate its average speed in meters per second
5.77 m/s
Speed= Distance/Time
Distance= 40+ half of 40= 40+20= 60 m
Time= 8.8+1.6=10.4 s
Average speed= 60/10.4=5.769230769 m/s
Approximately, the average speed is 5.77 m/s
It is D
12800 N