Usually start on the internet, there is bound to be something or a form of information on it.
Assumes the shape and volume of its container
<span>particles can move past one another</span>
Glass on glass,tire on concrete,tire on snow
The rotational speed of the person is 0.4 rad/s.
<h3>
Rotational speed (rad/s)</h3>
The rotational speed of the person in radian per second is calculated as follows;
v = ωr
where;
- v is linear speed in m/s
- r is radius in meters
- ω is speed in rad/s
ω = v/r
ω = 2/5
ω = 0.4 rad/s
Thus, the rotational speed of the person is 0.4 rad/s.
Learn more about rotational speed here: brainly.com/question/6860269
Distance (s)=100m
time
T₁=10
T₂=10.2
T₃=10.4
T₄=10.6
by v=

we get
V₁=

V₁=10m/s
V₂=

V₂=9.8m/s
V₃=

V₃=9.61 m/s
V₄=

V₄=9.43 m/s
V₁:V₂:V₃:V₄ = 10 : 9.8 : 9.61 : 9.43