Brianna weighs 425 n. she climbs a flight of stairs to a height of 8 m. it takes her 6 seconds.
how much work does brianna do when she climbs the stairs?
a.
71 j
b.
2550 j
c.
3400 j
d.
53 j

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].