Physics

Problem

2\,\text{kg}

block slides up a rough incline that makes an angle of

30^{\circ}

with the horizontal. Its initial speed at the bottom is

10\,\text{m s}^{-1}

. The coefficient of kinetic friction between the block and the incline is

0.20

. How far along the incline will the block move before it comes to rest? (Take

g = 9.8\,\text{m s}^{-2}

.) a)

8.5\,\text{m}

7.6\,\text{m}

5.8\,\text{m}

7.3\,\text{m}