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Physics
Physics
Problem
Two identical cars A and B travel around concentric circular tracks with the same angular speed
ω
\omega
ω
. The radius of A’s track is
r
r
r
and that of B’s track is
2
r
2r
2
r
. The ratio of their centripetal accelerations
a
A
:
a
B
a_A : a_B
a
A
:
a
B
is a)
2
:
1
2:1
2
:
1
b)
1
:
4
1:4
1
:
4
c)
1
:
2
1:2
1
:
2
d)
1
:
1
1:1
1
:
1
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