Two UFOs collide over Roswell, New Mexico. Before the collision, UFO A (mass 10,

Question

Two UFOs collide over Roswell, New Mexico. Before the collision, UFO A (mass 10,000.00kg) has a velocity of +100.00m/s and UFO B (mass 9000.00kg) had a velocity of -110.00m/s. When they collide they stick together. Please show how you did it.
a. What is the linear momentum vector of UFO A before the collision?
b. What is the linear momentum vector of UFO B before the collision?
c. What is the change in the velocity of UFO A due to the collision?
d. What is the change in the velocity of UFO B due to the collision?
e. Do these changes in velocities make sense? Why or why not?

Explanation / Answer

Initial lm of 1= 10000*100 = 1000000 Intial lm of 2= 9000*(-110) = -990000 c) conserving momentum ==> 1000000-990000 = 19000*V ==> 0.526m/sec ==> change in velocity of 1 ==> 99.474 m/sec d) change in velocity of second = 110.526m/sec e) Yes , this velocities make sense,...as its is an inelastic collision and both are of close momentum before collision..hence very lo momentum after collition

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