Question

The finger exerts a force of 84 N on the pinhead.
The pinhead has an area of 6.0 × 10^–5
(DONE) (i) Calculate the pressure exerted by the finger on the pinhead. (DONE)
P = F/A
P = 84/0.00006
pressure = 1400000
(NEED HELP) (ii) State the value of the force exerted by the pin on the thumb. (NEED HELP)

Answer 1

from(i) we have P=1400000

and A is given as 6.0 *10^-5

solving (ii)

Since, P=F/A

1400000=F/6.0*10^-5

Therefore, F(force on the thumb)= 1400000*6.0*10^-5= 8.4*10^1N

*Hope this helps*