A rectangular sheet of plywood measuring is laid flat on soft soil that can withstand…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A rectangular sheet of plywood measuring 2.0 m×1.5 m2.0\,\text{m}\times1.5\,\text{m} is laid flat on soft soil that can withstand a maximum pressure of 5.0×103 Pa5.0\times10^{3}\,\text{Pa}. Neglect the mass of the plywood itself. What is the greatest total mass that can be placed uniformly on the sheet without exceeding the soil’s pressure limit? (Use g=9.8 m s−2g = 9.8\,\text{m}\,\text{s}^{-2}.) (a) 1.8×103 kg1.8\times10^{3}\,\text{kg} (b) 1.5×103 kg1.5\times10^{3}\,\text{kg} (c) 3.0×103 kg3.0\times10^{3}\,\text{kg} (d) 1.0×103 kg1.0\times10^{3}\,\text{kg}

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