An object falls from rest over a high cliff with an acceleration of 10 m/s.
(a) What is its velocity after (í) 1s, (ii) 2 s, (iii) 3 s, (iv)
4s, (v) 5s?​

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.