A HYDRAULIC LIFT OFFICE CHAIR HAS ITS SEAT ATTACHED TO A PISTON WITH AN AREA OF 11.2CM2. THE CHAIR IS RAISED BY EXERTING FORCE ON ANOTHER PISTON, WITH AN AREA OF 4.12CM2. IF A PERSON SITTING ON THE CHAIR EXERTS A DOWNWARD FORCE OF 219 N, WHAT FORCE NEEDS TO BE EXERTED ON A THE SMALL PISTON TO LIFT THE SEAT?

2 answers

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219 * (4.12/11.2)