Question

A block of wood is kept on a table top. The mass of the wooden block is 5 kg and its dimensions are 40 cm x 20 cm x10 cm. Find the pressure exerted by the wooden block on the table top if it is made to lie on the table with its sides of dimensions 20 cm x 10 cm Given g= 10 m/s2.​

Answer 1

A=20 × 10 × $10^{-4}$ m²

F = 5g = 50N

Pressure =  $\frac{50}{200*10^{-4}} = \frac{100*10^{2}}{4}$    = 2500N/m²

= 2.5kPa

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