APFIVE Buoyant Force in an Accelerating Frame
A cube of side length L and density ρ_cube is suspended by a string in a container of fluid with density ρ_fluid, where ρ_cube > ρ_fluid. If the container is in an elevator accelerating upward at a, how does the tension in the string compare to when the elevator is at rest?
A
Decreases by ρ_fluid·L³a
B
Remains the same
C
Increases by ρ_cube·L³a
D
Increases by (ρ_cube - ρ_fluid)L³a
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