Figure N-6 -Two 50-N Weights Pull on the Scale as Shown. the Scale

question 196

Multiple Choice

Figure N-6

-Two 50-N weights pull on the scale as shown. The reading on the scale is

• A)0 N.
• B)25 N.
• C)50 N.
• D)100 N. This is clearer to understand if we think of the situation this way:
• E)Since no acceleration is taking place, the forces cancel one another.
• F)One of the weights "holds" the scale while the other weight stretches the spring.
• G)The two hanging weights provide forces that constitute an action/reaction pair.

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