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What is the minimum speed to avoid sinking when using a snowmobile to travel across fresh
water, in miles/hour [mph]? Assume the snowmobile plus rider weigh 700 lb, the snowmobile is
inclined at an angle of 20°, and that the snowmobile displaces a strip of water that is 2 ft wide
(i.e., into the page) and 3 in deep (see illustration).
3 in

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