In the lab, you connect one end of a 15 N/m spring to a ringstand, and you hang a 0.25-kg block from the other end of the spring. It hangs vertically in equilibrium.
- How far is the spring stretched from its relaxed length?
- Suppose that you put your hand beneath the block and lift up on the block in order to partially support it. It is still in equilibrium with the spring stretched 5 cm from its relaxed length. What is the force of your hand on the block?