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Physics
Problem
The speed of a scooter increases uniformly from
20
km
h
−
1
20\,\text{km\,h}^{-1}
20
km
h
−
1
to
68
km
h
−
1
68\,\text{km\,h}^{-1}
68
km
h
−
1
in
6
s
6\,\text{s}
6
s
. Its average acceleration in
m
s
−
2
\text{m\,s}^{-2}
m
s
−
2
is a)
4.80
4.80
4.80
b)
8.00
8.00
8.00
c)
2.22
2.22
2.22
d)
1.33
1.33
1.33
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