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Physics
Physics
Problem
Objects
X
X
X
and
Y
Y
Y
each have linear momentum of magnitude 10 kg m s⁻¹. The mass of
X
X
X
is 1 kg, while the mass of
Y
Y
Y
is 2.5 kg. Which statement about their kinetic energies is correct? a)
K
X
=
0.4
K
Y
K_X = 0.4\,K_Y
K
X
=
0.4
K
Y
b)
K
X
>
K
Y
K_X > K_Y
K
X
>
K
Y
c)
K
X
=
K
Y
K_X = K_Y
K
X
=
K
Y
d)
K
X
<
K
Y
K_X < K_Y
K
X
<
K
Y
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