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

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A block of mass

2.0\,\text{kg}

is released from rest at the top of a rough incline that makes an angle of

30^{\circ}

with the horizontal. The vertical height of the top point above the base of the incline is

4.0\,\text{m}

, and the coefficient of kinetic friction between the block and the incline is

0.10

. Calculate the speed of the block when it reaches the base of the incline.