(10%) Problem 5: Three balls are in water. Ball 1 floats, with half of it expose
ID: 2034254 • Letter: #
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(10%) Problem 5: Three balls are in water. Ball 1 floats, with half of it exposed above the water level. Ball 2, with a density less than the density of water is held below the surface by a cord anchored to the bottom of the container, so that it is fully submerged. Ball 3, of same radius as ball 2, but of greater mass, is suspended from a rope so that it is fully submerged 33% Part (a) which is true for Ball 1? Choose the best answer. Grade Summary Deductions Potential The magnitude of the buoyancy force is equal to that of the ball's weight. The magnitude of the buoyancy force is more than that of the ball's weight. The magnitude of the buoyancy force is exactly one half of that of the ball's weight The magnitude of the buoyancy force is less than that of the ball's weight. 0% 100% Submissions Attempts remaining: 4 (0% per attempt) detailed view Submit Hint I give up! Hints: 00% deduction per hint. Hints remaining:- Feedback: 000 deduction per feedback. 33% Part (b) which is true for Ball 2? Choose the best answer. -& 33% Part (c) Consider Ball 2 and Ball 3, which one experiences the larger buoyancy force? Choose the best answer.Explanation / Answer
a) Since ball 1 is floating, the magnitude of buoyant force is equal to the weight of ball. first option is correct
b)since ball 2 is anchored to the bottom of container,and it is fully submerged, the buoyant force is greater than weight of ball. second option is correct
c)since both the balls are fully submereged and are of same radius and hence volume, both are experinecing equal magnitude of buoyant force.
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