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A stone is thrown at an angle of 45^(@) ...

A stone is thrown at an angle of `45^(@)` to the horizontal with kinetic energy K. The kinetic energy at the highest point is

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SL ARORA-Motion in a Plane-Excercise
  1. What are the angles of projection of a projectile projected with veloc...

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  2. A bomb is dropped from an aeroplane flying horizontally with a velocit...

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  3. A stone is thrown at an angle of 45^(@) to the horizontal with kinetic...

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  4. A ball is thrown at an angle theta with the horizontal. Its time of fl...

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  5. The horizontal range of a projectile is 2 sqrt(3) times its maximum he...

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  6. Calculate the average angular velocity of the hour hand of the of a cl...

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  7. What furnishes the centripetal acceleration for the earth to go round ...

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  8. vec(A) is a vector with magnitude A, then the unit vector hat(A) in th...

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  9. Find a unit vector parallel to the vector 3 hat i +7 hat j + 4 hat k.

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  10. Evaluate : hat k . hat k

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  11. Can two non-zero vectors give zero resultant when they multiply with e...

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  12. A vector vec A is exparessed as vec A = A(x) hat I + A(y) hat j where...

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  13. What is the value of vec A xx vec A ?

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

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

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  16. Distinguish between position and displacement vectors.

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

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

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

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

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