question_answer 23)

For any arbitrary motion in space, which of the following relations are true : (a)     (b) (c) (d)    

Answer:

As the motion is arbitrary, the acceleration may not be uniform. So the relations (c) and (d) cannot be true. For an arbitrary motion, the average velocity cannot be defined as in equation (a), so relation (a) is not true. Only relations (b) and (e) are true.