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Calculate the angle between a 2N force a...

Calculate the angle between a 2N force and a 3N force so that their resultant is 4N.

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SL ARORA-VECTORS-Example
  1. Two forces equal to P and 2P newton act on a particle. If the first be...

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  2. The resultant vector of vec(P) and vec(Q) is vec(R). On reversing the ...

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  3. Calculate the angle between a 2N force and a 3N force so that their re...

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  4. The greatest and the least resultant of two force acting at a point ar...

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  5. The sum of the magnitudes of two forces acting at a point is 18 and th...

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  6. Establish the following inequalities geometrically or otherwise , (...

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  7. Establish the following vector in equalities: (i) |vec(a)-vec(b)| le...

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  8. Rain is falling vertically with a speed of 30 ms^(-1) . A woman rides...

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  9. A man can swim with a speed of 4kmh^(-1) in still water. He crosses a ...

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  10. A river 800 m wide flows at the rate of 5kmh^(-1). A swimmer who can s...

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  11. A boat man can row with a speed of 10 km h^(-1) in still water. If t...

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  12. Rain is falling vertically with a speed of 30 ms^(-1) . A woman rides...

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  13. To a person moving eastwards with a velocity of 4.8 kmh^(-1), rain app...

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  14. A ship is steaming towards east at a speed of 12 ms–1. A woman runs a...

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  15. In a harbour, wind is blowing at the speed of 72 km //h and the flag ...

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  16. To a man walking due east at the rate of 2kmh^(-1), rain appears to fa...

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  17. Find unit vector parallel to the resultant of the vectors vec(A) = hat...

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  18. A vector vec(X), when added to the resultant of the vectors vec(A) = 3...

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  19. Two forces vec(F)(1) = 3hati +4hatj and vec(F)(2) = 3hatj +4hatk are a...

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  20. If vec(A) = 3hati +4hatj and vec(B) = 7 hat I +24 hatj, find a vector ...

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