Gina pushes a book across a table at constant speed. Fatima
lowers a book from a...
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Physics
Gina pushes a book across a table at constant speed. Fatimalowers a book from a high shelf down to her waist, where it comesto rest. Isidra holds a book at her waist while carrying it upstairs. Jin holds a book at her waist while carrying it across theroom at constant speed. Who does zero work on their book?
A. Gina
B. Fatima
C. Isidra
D. Jin
Answer & Explanation
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Gina pushes the book across the table The direction of displacement either towards the right side or towards the left side and the direction of force ie the weight of the book are perpendicular to each other Thus Gina
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