1. You are sitting on your roof, waiting for Santa Claus. You start to slide. The angle of the roof is 16 degrees and your mass is 65 kg. Draw a free body diagram and determine the
weight, normal, and incline forces.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].