Physics

Physics

Problem

A wooden block of mass 12 kg12\,\text{kg} has dimensions 30 cm×20 cm×5 cm30\,\text{cm}\times20\,\text{cm}\times5\,\text{cm}. (Take g=9.8 m/s2g = 9.8\,\text{m/s}^2.) a. (i) Calculate the pressure exerted by the block when it rests on the face measuring 30 cm×20 cm30\,\text{cm}\times20\,\text{cm}. b. (ii) Calculate the pressure when it rests on the face measuring 20 cm×5 cm20\,\text{cm}\times5\,\text{cm}. State which orientation produces the greater pressure.

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