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A student pushes a 40-N block across the floor for a distance of 10 m. How much work was done to move the block? 4 J 40 J 400 J 4,000 J.

Respuesta :

Sarah06109

Answer:

[tex]\boxed {\boxed {\sf 400 \ J}}[/tex]

Explanation:

Work is a force that causes the displacement of an object. It is the product of force and displacement.

[tex]W=Fd[/tex]

The force is 40 Newtons and the displacement is 10 meters.

  • F=40 N
  • d=10 m

Substitute the values into the formula.

[tex]W= 40 \ N * 10 \ m[/tex]

Multiply.

[tex]W= 400 \ N*m[/tex]

Convert the units. 1 Newton meter is equal to 1 Joule, so our answer is equal to 400 Joules.

[tex]W= 400 \ J[/tex]

400 Joules of work was done to move the block.

Answer:

400 J

Explanation:

This is the correct answer for k12

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