In Fig. 7-9, we must apply a force of magnitude 80 N to
Chapter 7, Problem 26(choose chapter or problem)
In Fig. 7-9, we must apply a force of magnitude 80 N to hold the block stationary at x = -2.0 cm. From that position, we then slowly move the block so that our force does +4.0 J of work on the spring-block system; the block is then again stationary. What is the block's position? (Hint:There are two answers.)
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