In which of the following cases is friction both an advantage and a disadvantage? * A. Dragging a heavy box along the floor. B. Moving parts of a machine. C. Climbing up a hill. D. Drawing water from a well using a rope.
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In which of the following cases is friction both an advantage and a disadvantage? * A. Dragging a heavy box along the floor. B. Moving parts of a machine. C. Climbing up a hill. D. Drawing water from a well using a rope.
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Answer:
Option A - disadvantage , OptionB - also disadvantage option C - advantage Option D - Both