A spring with force constant is initially stretched by

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

A spring with force constant

200\,\text{N m}^{-1}

is initially stretched by

0.10\,\text{m}

. It is then allowed to contract until its extension is

0.04\,\text{m}

. Neglecting non-conservative forces, the work done by the spring force during this motion is (a)

+0.36\,\text{J}

(b)

+0.84\,\text{J}

(c)

-0.84\,\text{J}

(d)

+1.00\,\text{J}