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Is the magnitude of (overset rarr A - ov...

Is the magnitude of `(overset rarr A - overset rarr B)` same as that of ` (overset rarr B - overset rarr A)`?

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If overset rarr A + overset rarr B = overset rarr A - overset rarr B ,then:

The vectors overset rarr A and overset rarr B are such that | overset rarr A + overset rarr B| = | overset rarr A - overset rarr B | ,then the angle between two vectros will be :

Show that |overset rarr A + overset rarr B|^2 - |overset rarr A - overset rarr B |^2 = 4 overset rarr A cdot overset rarr B .

At what angles do the two fores (overset rarr P + overset rarr Q ) adn (overst rarr P - overset rarr Q) act so that the agnitude of the resultantts is sqrt(2(P^2 + Q^2 ) ) ?

Three vectors overset rarr P,overset rarr Q and overset rarr R satisfy the relations overset rarr P cdot overset rarr Q = 0 and overset rarr P * overset rarr R = 0 .To which vector, the vector overset rarr P is parallel to .

If |overset rarr A xx overset rarr B| = |overset rarr A cdot overset rarr B| ,then find the angle between overset rarr A and overset rarr B .

If the magnitude of vectors overset rarr P,overset rarr Q and oversert rarr R are 3,4 and 5 units respectively,and if overset rarr P + overset rarr Q = overset rarr R ,then what will be the angle between overset rarr P and overset rarr R ?

The dimensions of the quantity overset rarr E xx overset rarr B ,wehre overset rarr E represents the electric field and overset rarr B the magnetic field may be given as:

If overset rarr A = 2 hati + 5 hat j ,what is the unit vector perpendicular to overset rarr A ?

If overset rarr A,overset rarr B and overset rarr C are mutually perpendicular to each other ,then find the value of overset rarr A cdot (overset rarr C + overset rarr B) .

JBD PUBLICATION-KINEMATICS-EXAMPLE
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  2. What is unit vector?

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  4. A vector of magnitude 5,makes an angle 60^@ with the y-axis .Express t...

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  5. At what points on the projectile trajectory is the speed minimum

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  6. What is the vertical component of velocity of a projectile at its maxi...

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  9. At what angle ith the verticle should a projectile be projected so tha...

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  10. If u is the velocity of projection ,what is the value of maximum hori...

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  11. Name the quantity which remains unchanged during the flight of an obli...

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  12. How many directions of projection are possible for the same horizontal...

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  13. A bomb is dropped from an aeroplane when it is at a heigth h directly ...

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  15. If the angle of projection fo a projectile is doubled ,will the horizo...

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  16. Write the relation between linear velocity (v),angular velocity(omega)...

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  17. What is the effect of air resistance on the time of flight and horizon...

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  18. State, for each of the following physical quantities, if it is a scala...

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  19. What is the essential condition for addition of two vectors?

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  20. What is the physical meaning of zero vector?

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