A block oscillates horizontally on a spring with force constant

PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

0.40\,\text{kg}

block oscillates horizontally on a spring with force constant

25\,\text{N}\!/\!\text{m}

. At an instant when the block is

0.10\,\text{m}

from equilibrium, its speed is

1.5\,\text{m}\!/\!\text{s}

. Determine the amplitude of the motion.