What is the final step in the fourth stage of technological design, after a product has been improved and approved?

a. reporting the results
b. finding ways to lower costs
c. selling a prototype
d. determining criteria

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.