A stake is pulled out of the ground by means of two ropes. Determine the magnitude of force
such that the resultant force exerted on the stake is vertical.
Determine the tangent and the normal of a curve
Multiply Vectors by Constant in XY Plane Demo
Problem Set 13 problem 1
Transformation of Parent Functions
Telling time from clocks
Sim87: Sum of Interior Angles of a Quadrilateral