1. On the planet Microid, trains that run on air tracks much like the air track you used in lab are the principle means of transportation. A train car with a mass of 6300 kg is traveling at 12.0 m/s when it strikes a second car moving in the same direction at 2.2 m/s. The two stick together and move off with a speed of 4.00 m/s. What is the mass of the second car? Explain your reasoning. (10 pts) 2. How much kinetic energy was lost in the collision? (10 pts)

a) the mass of the second car = 28000 kg

b) the amount of kinetic energy that was lost in the collision =

Explanation:

Given that:

mass of the train car = 6300 kg

speed of the train car = 12.0 m/s

mass of the second moving car = ???

speed of the second moving car = 2.2 m/s

After strike;

they both move with a speed = 4.00 m/s

a)

Using the conservation of momentum :

b)

To determine the amount of kinetic energy that was lost in the collision;

we will need to find the difference between the kinetic energy before the collision and after the collision;

i.e

Now;  the  kinetic energy that was lost in the collision is calculated as follows:

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.