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?

Change in velocity of larger moose: (1/3)v - v = -(2/3)v 
change in velocity of small moose: (1/3)v - (-v) = (4/3)v 
- (change in velocity of larger moose)/(change in velocity of smaller moose) = 2

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Velocity=total displacement/timefrom house to store is 500 from store to neighbor is 200 therefore total displacement=500+200=700metrestherefore,700metres/910seconds=0.8metres per second