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What Is the Difference in Work Needed to Push a 100

Question 7

Multiple Choice

What is the difference in work needed to push a 100 kg crate (at constant speed) a distance of 2 m along an inclined plane that is at an angle of 20 degrees with the horizontal,if the coefficient of kinetic friction was equal to 0.20 or zero?


A) 670 N
B) 1040 N
C) no difference
D) 370 N
E) 134 N

Correct Answer:

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