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Physics
Physics
Problem
A straight-line graph between kinetic energy and
v
2
v^2
v
2
for a toy car passes through the points (
v
2
=
4
m
2
/
s
2
v^2 = 4\,\text{m}^2/\text{s}^2
v
2
=
4
m
2
/
s
2
,
KE
=
6
J
\text{KE} = 6\,\text{J}
KE
=
6
J
) and (
v
2
=
9
m
2
/
s
2
v^2 = 9\,\text{m}^2/\text{s}^2
v
2
=
9
m
2
/
s
2
,
KE
=
13.5
J
\text{KE} = 13.5\,\text{J}
KE
=
13.5
J
). Calculate the mass of the toy car.
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