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A force (3hati+2hatj) N displaces an obj...

A force `(3hati+2hatj)` N displaces an object through a distance `(2hati-3hatj)` m. The work done is :

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To find the work done by a force when an object is displaced, we can use the formula for work done, which is given by the dot product of the force vector and the displacement vector. ### Step-by-Step Solution: 1. **Identify the Force and Displacement Vectors:** - The force vector \( \mathbf{F} \) is given as \( \mathbf{F} = 3\hat{i} + 2\hat{j} \) N. - The displacement vector \( \mathbf{s} \) is given as \( \mathbf{s} = 2\hat{i} - 3\hat{j} \) m. ...
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ALLEN-BASIC MATHS-Exercise-04 [A]
  1. find the area of a parallelogram whose diagonals are veca=3hati+hatj-2...

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  2. If vecA=2hati+4hatj and vecB=6hati+8hatj and A and B are the magnitude...

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  3. A force (3hati+2hatj) N displaces an object through a distance (2hati-...

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  4. A vector vecF(1) is along the positive X-axis. its vectors product wit...

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  5. If hati,hatj and hatk are unit vectors along X,Y & Z axis respectively...

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  6. Two vectors vecP and vecQ that are perpendicular to each other if :

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  7. The magnitude of the vectors product of two vectors vecA and vecB may ...

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  8. Which of the following statements is not true

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  9. The vector vecB=5hati+2hatj-Shatk is perpendicular to the vector vecA=...

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  10. A physical quantity which has a direction:-

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  11. Which of the following physical quantities is an axial vector ? (a) mo...

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  12. The minimum number of vectors of equal magnitude needed to produce zer...

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  13. How many minimum numbers of a coplanar vector having different magntid...

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  14. How many minimum numbers of a coplanar vector having different magntid...

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  15. What is the maximum number of components into which a vector can split...

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  16. The maximum number of components into which a vector can be resolved i...

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  17. What is the maximum number of components into which a vector can split...

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  18. The vector sum of the forces of 10 newton and 6 newton can be:

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  19. Vector sum of two forces of 10N and 6N cannot be:

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  20. The unit vector along hati+hatj is

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