Throw a stone upwards. observe its motion and answer the following questions.

a)describe its motion.

b)how does its velocity change during upward and downward journey?

c)what part of motion is called free fall?

d) which part of the motion shows positive acceleration?

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.