Reference frames describe the position of points relative to the body. These frames <span>are used to specify the relationship between a moving </span>observer and the phenomenon or phenomena under observation. Reference frame definitely changes when the body is changing. That is the reason that in order t<span>o describe the position of a point that moves relative to a body that is moving relative to the Earth, it is usually convenient to use a reference frame attached to the moving body.</span>
Answer:
tbh vector does not have any direction at all the answer is 0
C) Staring At Someone's Body, Giving Them The “Once Over”
B. The kinetic energy will decrease.