As shown in the figure a block of mass \( 10 \, \text{kg} \) lying on a horizontal surface is pulled by a force \( F \) acting at an angle \( 30^\circ \), with horizontal. For \( \mu_s = 0.25 \), the block will just start to move for the value of \( F \):
[Given \( g = 10 \, \text{m s}^{-2} \)]
