Answered

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Croquet balls must have a mass of 0.50 kg. A red croquet ball, moving at 10
m/s, strikes an at-rest green croquet ball head-on. The red ball continues
moving at 1.5 m/s after it hits the green ball. What is the final speed of the
green ball?
O A. 5 m/s
B. 8.5 m/s
C. 1.5 m/s
O D. 15 m/s
SUS

Sagot :

ardni313

The final speed of the  green ball : 8.5 m/s

Further explanation

Given

mass of Croquet ball = 0.5 kg

v₁= 10 m/s

v₁'= 1.5 m/s

Required

the final speed

Solution

The law of conservation of momentum

m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)

v₂=0 (at rest)

Input the value :

[tex]\tt 0.5\times 10+0.5\times 0=0.5\times 1.5+0.5\times v_2'\\\\5=0.75+0.5v_2\\\\4.25=0.5v_2\rightarrow v_2=8.5~m/s[/tex]

chunndar000

Answer:

what he said lol

Explanation:

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