Physics

Problem

2\,\text{kg}

block is placed on a smooth

30^{\circ}

incline inside an elevator that is accelerating upward at

4\,\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\,\text{m}\,\text{s}^{-2}

). a)

17.0\,\text{N}

13.8\,\text{N}

27.6\,\text{N}

9.8\,\text{N}