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Physics
Physics
Problem
Two stones A and B have the same kinetic energy. If the mass of stone A is four times that of stone B, what is the ratio
v
A
:
v
B
v_{\text{A}}:v_{\text{B}}
v
A
:
v
B
of their speeds? a)
2
:
1
2:1
2
:
1
b)
4
:
1
4:1
4
:
1
c)
1
:
2
1:2
1
:
2
d)
1
:
4
1:4
1
:
4
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