An ideal spring obeys the relation

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

U = \frac{1}{2} k (\Delta x)^2

. If the spring constant is

250\,\text{N/m}

, what is the potential energy stored when the spring is compressed

0.080\,\text{m}

from equilibrium? (a)

1.6\,\text{J}

(b)

0.40\,\text{J}

(c)

0.80\,\text{J}

(d)

3.2\,\text{J}