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Sagot :
The correct answer to the question is C) 400 J.
CALCULATION:
As per the question, the force applied on the block F = 40 N.
The distance travelled by the block S = 10 m.
We are asked to calculate the work done by the block.
The work done by a body under a force F is calculated as -
Work done W = [tex]\vec F.\vec S[/tex]
= [tex]FScos\theta[/tex]
Here, [tex]\theta[/tex] is the angle between force and displacement.
If [tex]\theta =\ 0^{0}[/tex], then work done W = [tex]FScos0[/tex]
= FS. [ cos0 = 1]
Hence, the work done by the block W = FS
= 40 N × 10 m
= 400 Joule. [ans]
Here, Joule is the unit of work.
Hence, the work done by the block s 400 Joule.
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