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If |vec A + vec B|= |vec A|+|vec B|, the...

If `|vec A + vec B|= |vec A|+|vec B|`, then what is the angle between `vec A` and `vec B`.

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SL ARORA-Motion in a Plane-Excercise
  1. What is the value of vec A xx vec A ?

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  2. What is the angle between vec(A) and the esultant of (vec(A) + vec(B))...

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  3. If |vec A + vec B|= |vec A|+|vec B|, then what is the angle between ve...

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  4. Distinguish between position and displacement vectors.

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  5. Define (i) unit vector (ii) null vector (iii) cross product of two vec...

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  6. State and prove the commutative property of vector addition.

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  7. Give one example of dot product of vectors. Also give its unit

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  8. Find the work done in moving a particle along a vector vec S= (4 hat i...

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  9. The angle between vectors A and B is 60^circ. What is the ratio of vec...

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  10. Obtain an expression for the area of a triangle in terms of the cross ...

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  11. A projectile is fired with a velocity 'u' making an angle theta with t...

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  12. A projectile is projected with velocity u making angle theta with hori...

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  13. A projectile is projected with velocity u making angle theta with hori...

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  14. Show that there are two angles of projection for which the horizontal ...

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  15. The angle of projection at which the horizontal range and maximum heig...

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  16. A projectile is fired at an angle theta with the horizontal with veloc...

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  17. Galileo, in his book Two new sciences, stated that "for elevations whi...

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  18. Show that the horizontalrange is same for a projectile whether theta i...

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  19. Prove that the maximum horizontal range is four times the maximum heig...

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  20. Uniform circular motion is an acceleration motion. Comment.

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