A 20 Kg-Book Is on the Floor of an Elevator

question 30

Multiple Choice

A 2.0 kg-book is on the floor of an elevator. If the elevator is accelerating downward at a rate of , the normal force acting on the book by the floor is

• A) 0 N.
• B) 2.0 N.
• C) 10 N.
• D) 20 N.
• E) 30 N.

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