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The angle between the two vector vec(A)=...

The angle between the two vector `vec(A)= 5hat(i)+5hat(j)` and `vec(B)= 5hat(i)-5hat(j)` will be

A

Zero

B

`45^(@)`

C

`90^(@)`

D

`180^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
`vec(A).vec(B)=0 :. theta = 90^(@)`
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A2Z-VECTORS-Chapter Test
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  2. The angle between the two vector vec(A)= 5hat(i)+5hat(j) and vec(B)= 5...

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  3. Angle between the vectors (hat(i)+hat(j))and (hat(j)-hat(k)) is

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  5. Find the resultant of the three vectors vec(OA), vec(OB) and vec(OC) s...

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  6. A person goes 10 km north and 20 km east. What will be displacement fr...

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  7. Let vec(C )= vec(A)+vec(B) then

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  8. In figure, vec(E ) equals

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  9. A scooter going due east at 10 ms^(-1) turns right through an angle of...

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  10. Given that vec(A)+vec(B)=vec(C ) and that vec(C ) is perpendicular to ...

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  11. The component of a vector r along X-axis will have maximum value if

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  12. A particle moves so that its position vector varies with time as vec(r...

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  13. hat(e )(r) is unit Vector along radius of a circle shown in figure hat...

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  14. A vector of magnitude 10 N acting in X-Y-plane has componets 8 N and 6...

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  15. A particle P is acted by three coplanar forces as shown in the figure ...

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  16. A person moves 30 m north, then 30 m, then 20 m towards east and final...

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  17. A particle moves from position 3hat(i)+2hat(j)-6hat(k) to 14hat(i)+13h...

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  18. Normal reaction N is a force exerted by the surface on the block perpe...

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  19. Weight mg of a block is a force acting downward toward centre of the e...

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  20. Three forces are acting on a particle as shown in the figure. To have ...

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