(10 points) A rocket launched from an initial height of 1.2m reaches a height of 14m then falls down to the ground. How far away vertically does the rocket land from its initial position? Find the resultant displacement.

The vector a? is 3.50 cm long and is directed into this page. vector b? points from the lower-right corner of this page to the upper-left corner of this page and has the components bx=-19.5 cm , by=25 cm. in the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page, and +z-axis out of the page, find the x-component of the vector product a? ×b? , measured in cm2.