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Physics
Physics
Problem
A car starts from
x
0
=
5.0
m
x_0 = 5.0\,\text{m}
x
0
=
5.0
m
on a straight road and reaches
x
=
−
195
m
x = -195\,\text{m}
x
=
−
195
m
in
20
s
20\,\text{s}
20
s
. Calculate its average velocity. a)
+
10
m
s
−
1
+10\,\text{m}\,\text{s}^{-1}
+
10
m
s
−
1
b)
−
4.75
m
s
−
1
-4.75\,\text{m}\,\text{s}^{-1}
−
4.75
m
s
−
1
c)
−
10
m
s
−
1
-10\,\text{m}\,\text{s}^{-1}
−
10
m
s
−
1
d)
−
9.5
m
s
−
1
-9.5\,\text{m}\,\text{s}^{-1}
−
9.5
m
s
−
1
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