Question

) A boy pushes a lawn mower to a total distance of 125 m over the grass with a force of 60 N directed horizontally. How much work is done in joules by the boy?


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Answer 1

Given:

Boy pushes the lawn mower to a distance of 125 m

• Total distance, s = 125 m

Force applied to move over the grass is 60 N

• Force , f = 60 N

To find:

Work done in joules by the boy.

Work done is equal to the product of force and the displacement.

work done = force × displacement

$w = 60 \times 125 \\ \\ w = 7500 \: joule$

Work done is 7500 J

Answer 2

GIVEN:

• Distance = 125 m.
• Force = 60N.

TO FIND:

• Work done.

SOLUTION:

$\boxed{\sf{\blue{Work \ done = Force \times Distance}}}$

$\sf \to Work \ done = 125 \times 60$

$\sf \to Work \ done = 7500 \ Joules$

$\red{\therefore} \quad \mathfrak{\purple{Work \ done \ is \ 7500 \ joules }}$

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