A wooden block of density and volume is held completely submerged in water by a light…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Fluids · Fluids

Problem

A wooden block of density 6.0×102 kg m−36.0\times10^{2}\,\text{kg}\,\text{m}^{-3} and volume 1.5×10−2 m31.5\times10^{-2}\,\text{m}^3 is held completely submerged in water by a light string attached to the bottom of the tank. The block is at rest. What is the magnitude of the tension in the string? (a) 8.8×101 N8.8\times10^{1}\,\text{N} (b) 2.9×101 N2.9\times10^{1}\,\text{N} (c) 5.9×101 N5.9\times10^{1}\,\text{N} (d) 1.5×102 N1.5\times10^{2}\,\text{N}

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