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Chapter 6: Q3P (page 284)

Find the total work done by forces and if the object undergoes the displacement C . Hint: Can you add the two forces first?

Short Answer

Expert verified

The required work done is, W=‐5.

Step by step solution

01

Definition of work done

By substituting the force with the equation of

W=F.dW=F.d

Where Fis the force andd is the displacement andW is equal to the work.

02

Simplify

Let us know if work done can be calculated as,

W=F.d

To find F

role="math" localid="1659153886346" F=A+B,d=C

Substitute the values in the equation

W=A+B×C=i+j-2k+2i-j+3k×j-5k=3i+k+j-5k=-5

Therefore, the work done is W=‐5

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