A block is lying on an inclined plane which makes 60° with the horizontal. If coefficient of friction between block and plane is 0.25 and \[g=10\,m/{{s}^{2}}\], then acceleration of the block when it moves along the plane will be [RPET 1997]

• A.                         \[2.50\,m/{{s}^{2}}\]            
• B.                           \[5.00\,m/{{s}^{2}}\]            
• C.                         \[7.4\,m/{{s}^{2}}\]            
• D.                           \[8.66\,m/{{s}^{2}}\]