Wo skaters collide and embrace in an inelastic collision. Alex's mass is 90 kg and his initial velocity is 1.5 m/s i . Barbara's mass is 57 kg and her initial velocity is 2.0 m/s j. After the collision, the two skaters move together at a common velocity. Use conservation of momentum to find their final speed. (Hint, find combined velocity vector first.)

The two skaters will move with a common speed of 1.19 m/s.

Explanation:

Given that,

Mass of Alex,

Initial velocity of Alex,

Mass of Barbara,

Initial velocity of Barbara,

After the collision, the two skaters move together at a common velocity. Let V is the common velocity. Using the conservation of momentum as :

Magnitude of final velocity:

So, the two skaters will move with a common speed of 1.19 m/s.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.