NDA · 2023 Science & Technology › Physics & ChemistryA block of wood (dimensions : 40 cm × 20 cm × 10 cm) is kept on a tabletop in three different positions : (a) with its side of dimensions 20 cm × 10 cm; (b) with its side of dimensions 10 cm × 40 cm; and (c) with its side of dimensions 40 cm × 20 cm. The pressure exerted by the wooden block on the tabletop in these positions is represented by PA, PB and PC, respectively. The pressure follows the trend
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Evolution“Pressure” tested across 8 years (1988–2026)
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