Your friend you place a 105 kg sofa in the back of a 2600 kg truck. your keen vision tells you that the truck sinks 3.5 cm on its springs when you place the sofa. with what frequency (in hz) will the truck and the sofa oscillate on the springs?

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].