A nail is hit with a hammer to drive it into a wooden plank. The area of contact between the nail and the wood is 0.32 cm². If a pressure of 25 N/m² is exerted on the wooden plank, what is the force with which the nail is hit? (Remember 1 cm = = 10^-4 m)
(Ans. 8 x 10⁴ N )
plz explain the amswer
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Answered by
2
Answer:
On the head the nail Force=25 N
Area=0.5mm²
=0.5/100000 =0.000005m²
pressure =Force Area
=25/0.000005 Pa
=0.5×10⁸ Pa
On the tip of the nail Force=25n
Area=0.1mm² =0.1/100000
=0.000001m²
Pressure= Force Area =25/0.000001 Pa
=2.5×10⁸ Pa
Answered by
0
Answer:
On the head the nail Force=25 N
Area=0.5mm²
=0.5/100000 =0.000005m²
pressure =Force Area
=25/0.000005 Pa
=0.5×10⁸ Pa
On the tip of the nail Force=25n
Area=0.1mm² =0.1/100000
=0.000001m²
Pressure= Force Area =25/0.000001 Pa
=2.5×10⁸ Pa
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