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Luke stands on a scale in an elevator which has a constant acceleration upward. The scale reads 0.964 kN. When Luke picks up a box of mass 18.2 kg, the scale reads 1.202 kN. (The acceleration remains the same.) Calculate the acceleration of the elevator (enter first). Is it up or down?
Calculate Luke's weight.

  • Physics -

    1.202-.964=18.2(9.8+a) solve for a

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