For three situations, the initial and final positions, respectively, along the x axis for the block in Fig. 8-12 are (a) -3 cm, 2 cm, (b) 2cm, 3 cm , and (c) -2 cm, 2cm. In each situation, is the work done by the spring force on the block positive, negative, or zero?

For three situations, the initial and final positions, respectively, a

1.	For three situations, the initial and final positions, respectively, along the x axis for the block in Fig. 8-12 are (a) -3 cm, 2 cm, (b) 2cm, 3 cm , and (c) -2 cm, 2cm. In each situation, is the work done by the spring force on the block positive, negative, or zero?
Answer» ANSWER :(a) POSITIVE; (B) Negative; (c) ZERO

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For three situations, the initial and final positions, respectively, along the x axis for the block in Fig. 8-12 are (a) -3 cm, 2 cm, (b) 2cm, 3 cm , and (c) -2 cm, 2cm. In each situation, is the work done by the spring force on the block positive, negative, or zero?

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