Physicshard · Past Paper
If two bodies of mass 1 kg and 4 kg have the same kinetic energy, the ratio of their momenta is:
A1:1
B1:2
C1:4
D2:1
✓ Correct Answer: B — 1:2
p = sqrt(2mK). For same K, p1/p2 = sqrt(m1/m2) = sqrt(1/4) = 1/2.
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