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If someone presses a Needle against your skin you are hurt but if someone presses a rod against your skin with the same force you easily tolerate Explain

If someone presses a Needle against your skin you are hurt but if someone presses a rod against your skin with the same force you easily tolerate Explain

Grade:11

1 Answers

Arun
25750 Points
6 years ago
Dear student
 
As we know
P = F/A
Hence if area of cross section is small then a small force will create larger pressure.
Thus us the main reasin with respect to needle and rod
Area of cross section of needle is smaller compared to rod hence needle hurts more than the rod.
 
Regards
Arun (askIITians forum expert)

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