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how can you right a tipped truck?

the clue
We're Ashley and Chloe and we know many sports arenas use inflatable dome roofs. This gave us an idea. We taped together some plastic garbage bags and poked a hole in one corner to insert a straw. Then Ashley took a deep breath and blew. I sat on the bag, but didn't rise the first time. Instead, the bag inflated around me. Then Chloe suggested we place a big thin board on the bag and that I sit on the board. That way more of the bag would be working to lift me. Sure enough, Ashley was able to blow into the bag and lift me! Do you think this could work with a semi-truck?
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