# 6 Physics help/questionsO Google KeepE Unit 6 PT I: Work and KEb Answered: 10. The force act XAUnit 6 PT I Google FormC 88 |VPNdocs.google.com/forms/d/e/1FAlpQLSFKo3R1peq7saCxTOz3VtnNr7kuRXVPbaVyg1r9n6aUuDwuQg/viewform3X Course | STV1.1x|e..4. A crate weighing 22 lbs F(2) is pushed to the right by a 28 lb force (F1).The floor pushes upward on the crate with a 22 lb force F(3) and a 22 lbfrictional force F(4) acts to the left, as shown in the diagram. What kinds of1 pointwork do F(1), F(2), F(3) and F(4) do on the crate, respectively? *F2(22 lb)F1(28 lb)F

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Asked Jan 16, 2020
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Step 1

For the figure illustrated above, The Force F1 acts on the crate in the direction of the displacement of the crate.

The expression for work  W1 done on the crate due to force F1 is,

Step 2

Here d is the displacement of the crate.

Therefore the work W1 done on the crate is positive.

The Force F2  acts on the crate in the direction perpendicular of the displacement of the crate vertically downwards.

The expression for the work  W2 done on the crate due to force F2 is,

Step 3

Therefore, no work is done on the crate due to the force F2.

The Force F3  acts on the crate in the direction perpendicular of the displacement of the crate vertica...

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