diamondmoneee diamondmoneee

28-04-2024
Mathematics

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Find the work W done by a force F = (40i - 15j) Ib in moving an object in a straight line given by the displacement vector
D = (40i + 20j) ft.

Find the work W done by a force F 40i 15j Ib in moving an object in a straight line given by the displacement vector D 40i 20j ft class=

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olumideolawoyin olumideolawoyin

28-04-2024

Answer:

1300 ft.lb

Step-by-step explanation:

Work done W = F . D = (40i - 15j).(40i + 20j)

= (40×40) + (-15×20)

= 1600 - 300

= 1300 ft.lb

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