Question

3. A man squeezes a pin between his, thumb, finger.
(1)The finger exerts a force of 84 N on the pinhead.
(2)The pinhead has an area of 6.0 x 10 m²
(3)Explain why the pin causes more pain in the man's thumb than in his finger?
11111​

Answer 1

hey buddy here we must use the formula less the area more the pressure , more the area less the pressure

Answer 2

Because pressure  exerts more pressure on pin tip  than the pressure exert on pinhead.

Step-by-step explanation:

Force exerts on pinhead=84 N

Area of pinhead=$6\times 10 m^2$

We know that

Pressure=P=$\frac{F}{A}$

Where F=Force applied

A=Surface area

$P\propto\frac{1}{A}$

When area is large then pressure is small

When area is small then pressure is large.

Area of pinhead is larger than the area of pintip.

Therefore,pressure exert more on pintip than the pressure exert on pinhead

Hence, the pin causes more pain in the man's thumb in his finger.

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