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A model elevator
A working model of an elevator can simply be made from easy materials. For the rotating drums or sheaves, metal coffee tin will do. With a hammer and a big nail punch holes in the exact centre of the bottoms and lids. Change the lids and mount the tins on opposite ends of a board, taking care that they both turn simply.
model elevator
Awhat is angle of projection of body thrown from inclined plane of 37degree so that body hits inclined plane normalysk question #Minimum 100 words accepted#
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