Answer to Question #113 in Mechanics | Relativity for Lisa

Question #113
Two bodies of equal volume — made of steel and lead - move with identical velocities. Compare the impulses of these bodies.
1
Expert's answer
2010-05-17T05:46:12-0400
With equal speed, the momentum depends only on the masses. Under equal volumes, the density of lead is 11,35 g/cm3, the density of steel is 7,85 gr/cm3. The density of lead is higher, this means that body weight of the lead body is bigger, thus the impulse is also bigger.

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