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10-01-2024
Physics

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A block of mass m is placed in an elevator moving down with an acceleration The work done by the normal reaction on the block as the elevator moves down through a heighth is -2mgh 2mgh mgh Which of the following is/are not universal law(s)?

A. -2mgh/3
B. -mgh/3
C. 2mgh/3
D. mgh/3

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