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A student is standing in an elevator that is
accelerating downward. The force that the
student exerts on the floor of the elevator must
be
(1) less than the weight of the student when at
rest
(2) greater than the weight of the student when
at rest
(3) less than the force of the floor on the student
(4) greater than the force of the floor on the
student


Sagot :

The force that the student exerts on the floor of the elevator must be "(1) less than the weight of the student when at rest" since the elevator is "beating" him downward.
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