A block is placed on a smooth incline inside an elevator that is accelerating upward at

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A 2 kg2\,\text{kg} block is placed on a smooth 30∘30^{\circ} incline inside an elevator that is accelerating upward at 4 m s−24\,\text{m}\,\text{s}^{-2}. The block is held stationary relative to the incline by a light string parallel to the plane. Calculate the tension in the string (take g=9.8 m s−2g=9.8\,\text{m}\,\text{s}^{-2}). (a) 17.0 N17.0\,\text{N} (b) 13.8 N13.8\,\text{N} (c) 27.6 N27.6\,\text{N} (d) 9.8 N9.8\,\text{N}

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