A block is released from rest at the top of a smooth track of height

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

Problem

2\,\text{kg}

block is released from rest at the top of a smooth track of height

2\,\text{m}

. After descending, it travels

3\,\text{m}

along a horizontal surface where the coefficient of kinetic friction is

0.20

. Calculate the speed of the block at the end of the horizontal section.