Physics

Problem

5\,\text{kg}

block starts sliding down a rough plane inclined at

30^{\circ}

to the horizontal. The coefficient of kinetic friction between the block and the plane is

0.20

. Take

g = 10\,\text{m\,s}^{-2}

. What is the acceleration of the block along the plane? a)

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

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

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

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