A cube-shaped bar floats in a bucket partially filled with water. The bucket is on the floor of the resting elevator.

bystudin | October 24, 2020 | Education

A cube-shaped bar floats in a bucket partially filled with water. The bucket is on the floor of the resting elevator. The upper edge of the bar protrudes above the water to a height of h1. The lift begins to rise with a constant acceleration, the modulus of which is equal to a. As a result, the upper edge of the bar began to protrude above the water to a height of h2 Compare h1 and h2. (Hint: derive the formula for calculating the modulus of the buoyancy force in an elevator moving with acceleration)

Archimedes’ force is equal to the weight of the displaced liquid. With accelerated movement, the weight of the liquid will increase by mа, therefore, the Archimedes force will also increase. This means that the immersion depth will not change.

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