A horizontal force is acting on a block moving on a rough horizontal surface. The force has the same magnitude as the maximum force of static friction between the block and the surface. If the coefficients of friction are Hs = 0.75 and Hk = 0.50. Find the acceleration (in m/s2) = of the block.

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].