A block is released from rest at the top of a long incline that makes an angle of…

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

2.0\,\text{kg}

block is released from rest at the top of a

5.0\,\text{m}

long incline that makes an angle of

30^{\circ}

with the horizontal. The coefficient of kinetic friction between the block and the surface is

0.20

. What is the speed of the block at the bottom of the incline? (a)

6.3\,\text{m/s}

(b)

5.7\,\text{m/s}

(c)

7.0\,\text{m/s}

(d)

9.9\,\text{m/s}