21. Frank Enstein delivered his newspapers one evening. To deliver his newspapers, Frank traveled 3 blocks East, then 2 blocks North, then 3 blocks West, then, finally, 2 blocks South
What Frank's displacement? Hint: It may be helpful to draw this out.

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?