>Similarly, a lifted weight has inertia. You cant just yank it up. Force is force, whether it is due to elasticity or gravity. The difference is that the drawi

>Similarly, a lifted weight has inertia. You cant just yank it up. Force is force, whether it is due to elasticity or gravity. The difference is that the drawing force increases progressively, whereas the weight of an object is (for these purposes) constant (as stated).