Two male moose charge at each other with the same speed and meet on a icy patch of tundra. as they collide, their antlers lock together and they slide together with one-third of their original speed. what is the ratio of their inertias?

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25-01-2017
Physics

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Two male moose charge at each other with the same speed and meet on a icy patch of tundra. as they collide, their antlers lock together and they slide together with one-third of their original speed. what is the ratio of their inertias?

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scme1702 scme1702 · Answer 1 · 2017-02-01T13:51:43+01:00

scme1702 scme1702

01-02-2017

Their linear inertia is equivalent to their masses. Let the inertia of the first moose be m₁ and the second be m₂.

m₁u + m₂u = (m₁ + m₂) x 1/3 u
3m₁ + 3m₂ = m₁ + m₂
3 m₁/m₂ + 3 = m₁/m₂ + 1
m₁/m₂ = 2

The ratio of their inertias is 2

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