the head of pin is a square 10mm . find the pressure on it due to force of 20N. please explain that if anyone don't know solve then don't click answer because the other do not answering me...
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a force of 20 N is exerted on the head of the drawing pin using one's thumb to push the pin into the drawing board. the top of the pin has area of 100 mm² and the tip of pin has area 0.1 mm².calculate the pressure on the thumb and on the drawing board.
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