a worker poling a boat- a very efficient mode of transportation- across a shallow lake. he pushes parallel to the length of the light pole, exerting on the bottom of the lake a force of 240N. assume the pole lies in the vertical plane containing the boat's keel. at one moment, the pole makes an angle of 35degrees with the vertical and the water exerts a horizontal drag force of 47.5N on the boat, opposite to its forward velocity of magnitude of 0.857m/sec. the mass of the boat including its cargo and the worker is 370kg. (a) the water exerts a bouyant force vertically upward on the boat.

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a worker poling a boat- a very efficient mode of transportation- across a shallow lake. he pushes parallel to the length of the light pole, exerting on the bottom of the lake a force of 240N. assume the pole lies in the vertical plane containing the boat's keel. at one moment, the pole makes an angle of 35degrees with the vertical and the water exerts a horizontal drag force of 47.5N on the boat, opposite to its forward velocity of magnitude of 0.857m/sec. the mass of the boat including its cargo and the worker is 370kg. (a) the water exerts a bouyant force vertically upward on the boat.

Physics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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(continuation of a) find the magnitude of this force. (b) model the forces as constant over a short interval of time to find the velocity of the boat 0.450 seconds after the moment described.

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