Blocks A and B are moving toward each other along the x axis. A has a mass of 2 kg and a velocity of 50 m/s, while B has a mass of 4 kg and a velocity of -25 m/s. They collide head-on in an elastic collision. After the collision the velocities of A and B, respectively, are:

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

The metric unit of electrical power is the watt volt ampere ohm

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec