A spring in equilibrium is 0.2 meters long and an external force of 0.5 Newtons stretches the spring to a length of 0.24 meters. The work done by the spring in stretching it from equilibrium to 0.28 meters, in Newton-meters, is

A)-0.8
B)-0.5
C)-0.12
D)-0.04
E)-0.09

Question

A spring in equilibrium is 0.2 meters long and an external force of 0.5 Newtons stretches the spring to a length of 0.24 meters. The work done by the spring in stretching it from equilibrium to 0.28 meters, in Newton-meters, is
​
A)-0.8
B)-0.5
C)-0.12
D)-0.04
E)-0.09

Quizplus · Accepted Answer

The Answer of A spring in equilibrium is 0.2 meters long and an external force of 0.5 Newtons stretches the spring to a length of 0.24 meters. The work done by the spring in stretching it from equilibrium to 0.28 meters, in Newton-meters, is
​
A)-0.8
B)-0.5
C)-0.12
D)-0.04
E)-0.09

A Spring in Equilibrium Is 0