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phy set 8

Welcome to your phy set 8

1. 
Which is vector quantity?

2. 
Cross product of perpendicular unit vectors

3. 
Dot product of perpendicular unit vectors

4. 
Displacement vector: A = 2i + 3j + 4k ⇒ magnitude?

5. 
Which is an axial vector?

6. 
Which is a polar vector?

7. 
Which has only direction, no magnitude?

8. 
Position vector in 3D: (3, 2, 1) ⇒ written as

9. 
A, B, C are coplanar ⇒ scalar triple product =

10. 
A · (B × C) geometrically represents...

11. 
Scalar triple product A · (B × C) is...

12. 
Vector perpendicular to both A = i + j and B = i – j

13. 
Which pair of vectors has cross product = 0?

14. 
A = 2i + 2j, B = i + j ⇒ A × B = ?

15. 
Angle between (3i + 4j) and (–4i + 3j)

16. 
Which has zero scalar product with (3i – 4j)?

17. 
Vector with magnitude 5, along y-axis

18. 
Vector parallel to x-axis

19. 
A = 2i + 3j, B = i + 4j ⇒ A · B = ?

20. 
Vectors A and B same direction, angle between = ?

21. 
Two vectors have same direction, their scalar product is...

22. 
If two vectors are perpendicular, their scalar product is...

23. 
Angle between A = 2i + j and B = 3i + 4j

24. 
A = 3i + 4j, B = i – j ⇒ angle between them?

25. 
A = i + 2j, B = 2i + j ⇒ A · B = ?

26. 
Angle between A = i – j and B = i + j

27. 
Vector A = 2i + 2j, B = i + j ⇒ A · B = ?

28. 
Max value of scalar product of 2 unit vectors

29. 
Which of the following is not vector quantity?

30. 
Two unit vectors, angle 60°, dot product?

31. 
Which is false?

32. 
Resultant of 5 N and 12 N forces at 90°

33. 
Angle between two perpendicular vectors?

34. 
If vector A = i + j, B = i – j ⇒ A · B = ?

35. 
Which is a scalar quantity?

36. 
Which is a vector quantity?

37. 
If vector sum ⊥ vector difference ⇒ forces?

38. 
Angular momentum minimum for a projectile

39. 
Two equal vectors have resultant = either of them ⇒ angle?

40. 
Max components into which a vector can be split

41. 
Cycle wheel radius 4 m, 1 rev in 2 s → acceleration

42. 

43. 
u = (3i + 4j), a = (0.4i + 0.3j), find speed after 10s

44. 
Find vector C if A + B + C = 0

45. 
Man & bag slipping from same height → velocity relation

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