A vector A of magnitude 10 N makes an angle of 60° with the x-axis. Its x-component is:

The projection of vector A along vector B is:

The angle between vectors A = î + ĵ and B = î - ĵ is:

If A = 3î + 4ĵ, the magnitude of vector A is:

The cross product of two vectors A and B inclined at angle θ has magnitude:

Using integration, the work done by a variable force F = kx from x=0 to x=d is: