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qUESTIONS

If two vectors 2î + 3ĵ – 1k̂ and -4î – 6ĵ + λk̂ are parallel to each other then value of λ be

The vector sum of two forces is perpendicular to their vector differences. In that case, the forces

The maximum and minimum magnitude of the resultant of two given vectors are 17 units and 7unit respectively. If these two vectors are at rightangles to each other, the magnitude of theirresultant is

Two forces 3N and 2 N are at an angle θ such that the resultant is R. The first force is now increased to 6N and the resultant become 2R. The value of θ is

A plane is revolving around the earth with a speed of 100 km/hr at a constant height from the surface of earth. The change in the velocity as it travels half circle is

The resultant of P̅ and Q̅ is perpendicular to P̅. What is the angle between P̅ and Q̅

The resultant of two vectors A and B is perpendicular to the vector A and its magnitude is equal to half the magnitude of vector B. The angle between A and B is

If vectors P, Q and R have magnitude 5, 12 and 13 units and P̅ + Q̅ = R̅, the angle between Q and R is

The sum of two forces acting at a point is 16 N. If the resultant force is 8 N and its direction is perpendicular to minimum force then the forces are

The three vectors Ā = 3î – 2ĵ + 1k̂, B̅ = 1î – 3ĵ + 5k̂ and C̄ = 2î + 1ĵ – 4k̂ form

1 2 3 4

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