A 30-N Box Is Pulled Upward 6

question 157

Multiple Choice

A 30-N box is pulled upward 6.0 m along the surface of a ramp that rises at 37° above the horizontal.How much work does the gravitational force exerted on the box by Earth do on the box during this process?

• A)-1100 J
• B)-110 J
• C)-140 J
• D)-180 J
• E)120 J

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