Matter & Interactions 2nd ed. Practice Problems
Aaron Titus | High Point University
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1310003     A block hanging vertically from a spring in equilibrium.     1310003
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Question

 

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.

  1. How far is the spring stretched from its relaxed length?
  2. 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?