A 50kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for sentral the mass reaches a velocity of 3m/s.
a) What is the initial momentum of the mass?
b) What is the final momentum of the mass?
What was the force acting on the mass?
d) What was the impulse acting on the mass?​

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 4.50 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 awhat is the electric potential at point a due to q1 and q2? part bwhat is the electric potential at point b? part ca point charge q3 = -4.00 μc moves from point a to point b. how much work is done on q3 by the electric forces exerted by q1 and q2?