2) A man squeezes a pin between his thumb and finger, as shown in Fig. 6.1.
finger
pinhead
pin
thumb
Fig. 6.1
The finger exerts a force of 84 N on the pinhead.
The pinhead has an area of 6.0 x 10-5 m2.
(i) Calculate the pressure exerted by the finger on the pinhead.
P
42
pressure =