Question

Determine (a) the pressure felt on your palm to hold a textbook of mass 1 kg in equilibrium. Assume the distribution of pressure over the palm to be uniform and the area of contact to be 25 cm2. (b) What-if Scenario: How would a change in atmospheric pressure affect your answer (0: No change; 1: increase; -1 decrease)?

Answer 1

Step-by-step explanation:

Given

mass of textbook
`m=1 kg`

area of contact
`A=25 cm^2\approx 25* 10^(-4) m^2`

Pressure is given by perpendicular force to an area.

`P=(Force)/(Area)`

`P=(mg)/(A)`

`P=(1* 9.8)/(25* 10^(-4))`

`P=3.92 KPa`

(b)If pressure is increased then it will have no effect because pressure applied is same in all direction.