A block is attached to a spring which is resting on a fricti…
A block is attached to a spring which is resting on a frictionless table. The block is pushed into the spring, compressing it. The graph shows the component of the force (in N) exerted by the spring back on the block versus the position of the block relative to equilibrium. What is the energy stored in the spring when it is pushed back to a distance of 4.5 cm from equillibrium?