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Standard IX

Physics

Work

A body is und...

Question

A body is under the action of two equal and opposite forces, each of 10 N. The body is displaced by 5 m.The work done is

+50J

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-50J

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100J

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Zero

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Solution

The correct option is D Zero
Given
Applied forces $F = 10 N$
Displacement $= 5$
As the situation given in the question,
Resultant force acting on the block $F_{n e t} = F + (- F)$
Hence $F_{n e t} = 0$
$W = F_{n e t} \times d i s p l a c e m e n t W = 0 \times 5 = 0$

$∴$ Work done is $Z E R O$

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A body is under the action of two equal and opposite forces, each of 10 N. The body is displaced by 5 m.The work done is

The correct option is D ZeroGivenApplied forces F=10 NDisplacement =5As the situation given in the question,Resultant force acting on the block Fnet=F+(−F)Hence Fnet=0W=Fnet×displacementW=0×5=0∴ Work done is ZERO

The correct option is D Zero
Given
Applied forces $F = 10 N$
Displacement $= 5$
As the situation given in the question,
Resultant force acting on the block $F_{n e t} = F + (- F)$
Hence $F_{n e t} = 0$
$W = F_{n e t} \times d i s p l a c e m e n t W = 0 \times 5 = 0$

$∴$ Work done is $Z E R O$