A 25-Kg Box of Books Is Dropped on the Floor

question 26

Multiple Choice

A 25-kg box of books is dropped on the floor from a height of 1.1 m and comes to rest.What impulse did the floor exert on the box?

• A)cannot be answered without knowing how long it took the box to stop
• B)22 kg∙m/s
• C)120 kg∙m/s
• D)270 kg∙m/s
• E)540 kg∙m/s

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