Arailroad diesel engine coasting at 1.2 m/s runs into a stationary flatcar that has a mass of 1000 kg. the diesel weighs 5 times as much as the flatcar. assuming the cars couple together, how fast are they moving after the collision? what type of collision is this?

V = 0.2 m/s

Explanation:

given,                                        

speed of the diesel engine = 1.2 m/s

mass of car = 1000 Kg                      

using conservation of momentum

m₁v₁ + m₂v₂ = (m₁ + m₂ ) V                  

v₂ = 0 for stationary flatcar

1.2  m₂ =  (5 m₂ + m₂ )V                          

1.2  m₂ =  (6 m₂ )V                      

V = 0.2 m/s                                                            

hence, the velocity moving after collision is equal to 0.2 m/s

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.