A of mass 5.0 kilograms moving at 20. meters per second collides with ball B of unknown mass moving at 10. meters per second in the same direction. After the collision, ball A moves at 10. meters per second and ball B at 15 meters per second, both still in the same direction. What is the mass of ball B
1 answer:
Answer:
Mass of B is 10 kg
Explanation:
M1v1a + m2v1b = m1v2a + m2v2b
Let m2 = x
5*20 + x10 = 5*10 + x15
100 + x10 = 50 + x15
50 = x5
X= 10
Mass of B is 10 kg
M1 = mass of A
V1a = initial velocity of A
V2a = final velocity of A
M2 = mass of B
V1b = initial velocity of B
V2b = final velocity of B
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