When a 45-Kg Person Steps on a Scale in an Elevator,the

question 27

Multiple Choice

When a 45-kg person steps on a scale in an elevator,the scale reads a steady 410 N.Which of the following statements must be true? (There could be more than one correct choice. )

• A)The elevator is accelerating upward at a constant rate.
• B)The elevator is accelerating downward at a constant rate.
• C)The elevator is moving upward at a constant rate.
• D)From the given information,we cannot tell if the elevator is moving up or down.

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