When sewing, a force equal to 2N directed along the needle is applied to the needle.
| January 31, 2021 | education
When sewing, a force equal to 2N directed along the needle is applied to the needle. Calculate the pressure that the needle exerts on the body. The area of the needle point is 0.01mm2.
To find out the required pressure of the specified needle on the body, we use the formula: P = F / S, where F is the acting force (F = 2 N); S is the area of the tip of the specified needle (S = 0.01 mm2; in SI S = 10 ^ 8 m2).
Let’s perform the calculation: P = F / S = 2/10 ^ -8 = 2 * 10 ^ 8 Pa.
Answer: The pressure that the specified needle should exert on the body is 2 * 10 ^ 8 Pa.
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