A nail is driven into a wooden board by using a hammer. the impact of hammer on the head of the nail reduces the thrust of 25N. If the area of head is 0.5mm square and the tip is 0.1mm square.Find the pressure of head and tip.
Asked by RAJDEEP NASKAR | 6th Oct, 2013, 06:43: PM
The force on the nail is F = 25 N
Area of head is A1 = 0.5 mm2 = 0.5 × 10-6 m2.
Area of tip is A2 = 0.1 mm2 = 0.1 × 10-6 m2.
Pressure is P =F/A
Thus, pressure of head is
Similarly, pressure on tip is
Answered by Romal Bhansali | 7th Oct, 2013, 09:51: AM
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