A puck slides across horizontal ice with an initial speed of

PHYSICS · Subjective · GCSE · Physics · Energy · Energy

Problem

0.80\,\text{kg}

puck slides across horizontal ice with an initial speed of

6.0\,\text{m/s}

. After traveling

3.0\,\text{m}

, it contacts and compresses a light horizontal spring fixed to a wall. The coefficient of kinetic friction between the puck and ice is

0.12

everywhere. The puck momentarily stops after compressing the spring, is pushed back, and eventually comes to rest

1.2\,\text{m}

away from the spring’s uncompressed position. Determine the maximum compression

x

of the spring.