<span>After collison they stick together and have same velocity Vf
From the momentum conservation,
(m1 + m2)Vf = m1v1 + m2v2
Second is moving with half of first cart speed, (m1 + m2)Vf = m1v + m2v / 2
2(m1 + m2)Vf = (2m1v + m2v) =>Vf = ((2m1 + m2) v) / 2(m1 + m2)
Identical carts so m1 = m2 = m
vf = 3mv / 4m => Vf = 3v / 4</span>
<h2>Answer:</h2>
<u>Blue main Sequence stars have the greater initial mass</u>
<h2>Explanation:</h2>
Blue main sequence stars are the stars with surface temperatures of 20,000 to 50,000 Kelvin and can be 25 times larger than the Sun. They are extremely hot so they have blue color. The best example of this type of stars is Rigel which is the brightest star in the constellation of Orion.
C. 18 N:s West ksmxmak kxkammxj kan
Answer:
Displacement between 0s and 6s = 2
Distance between 0s and 6s = 14
Explanation:
Displacement: 0+2 = 2
Distance: |-2|+6+6