Vijay is pulling a block with 22 N force and Gopal is pulling it with 10 N force in opposite direction. Vijay is able to pull the block a total distance of 6.5 m. Find the net work done by the two forces.

12 J

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90 J

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85 J

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78 J

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Solution

The correct option is D
78 J

Two forces 22 N and 10 N are acting in opposite direction on the body.

The net force acting on the block =(22-10) N =12 N

Displacement of the body along the direction of the force is 6.5 m.

Net Work done
= Net force $\times$ total displacement
$= 12 \times 6.5 = 78$ J

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Q. Vijay is pulling a block with

22 N

force and Gopal is pulling it with

10 N

force in the opposite direction. The block moves a distance of

6.5 m

in the same direction in which Vijay is pulling it. The work done on the block is:

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Vijay is pulling a block with 22 N force and Gopal is pulling it with 10 N force in opposite direction. Vijay is able to pull the block a total distance of 6.5 m. Find the net work done by the two forces.

The correct option is D 78 J Two forces 22 N and 10 N are acting in opposite direction on the body. The net force acting on the block =(22-10) N =12 N Displacement of the body along the direction of the force is 6.5 m. Net Work done = Net force × total displacement =12×6.5=78J