
Vectors
Hi,
A force F of 6 units acts in the direction 30 degrees west of north. An object is constrained to move northwesterly, that is, 45 degrees west of north.
a) Sketch the force vector roughly to scale on a set of axes that has the positive y axis pointing north, and write F using exact values, either in the form (x,y) or else in the form xiyj.
b) Write the vector in the direction of a given movement of the object.
c) Without using trigonometric functions, find both the scalar component and the vector projection of F in the direction of movement of the object. Write both answers as exact values, not decimal approximations.
im having problems with these questions, could u give me steps too ?
thanks,
moon