D is the best answer. In many physics problems we treat an extended object as if it were a point with the same mass located at the center of mass.
The answer is 24N. Since the body is moving with constant velocity all the forces must balance (equal & opposite)
Mr. Hitch taught us about sedimentary, metamorphic, and igneous rocks. He described how they were formed, what they contain, and showed us samples of each. He is a good geologist.
The missing word and answer is: geologist.
