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9. Work & Energy - Part 1 of 2

9. Work & Energy / Net Work & Work-Energy Theorem / Problem 9

The force applied to an object moving in the horizontal direction varies with the position, as shown in the figure below. Calculate the work done on the object i) between 0 cm and 2.5 cm, ii) between 2.5 cm and 10 cm, and iii) between 10 cm and 15 cm.

A

i) 0 J; ii) 0.3 J; iii) -0.3 J

B

i) 0.05 J; ii) 0.26 J; iii) 0.13 J

C

i) 0 J; ii) 3 J; iii) -3 J

D

i) 5 J; ii) 26 J; iii) 15 J

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