At t = 4.0 s, the elevator door opens and remains open for 5.0 s. The student immediately exerts a larger constant force on the box and the front of the box reaches the elevator door just as it start
to close.
() Calculate the magnitude of the new force that the student exerts.
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At t = 4.0 s, the elevator door opens and remains open for 5.0 s. The student immediately exerts a l...
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