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two balls of clay suffer a headon (1 - D) ) collision and stick together Ball...

two balls of clay suffer a headon (1 - D) ) collision and stick together Ball has a mass of 200 g and initially moving with a velocity of 45 cm / s to the right has mass of 600 g and is initially moving at 25 cm / s to the leftWhat their final velocity in cm/s?
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Answer #1

Law on conservation of momentum,

Suffix 1 is used for Ball 1 ; of mass,  m1 = 200g and Intial velocity, u1 = 45 cm/s

Suffix 2 is used for Ball 2 ; of mass,  m2 = 600g and Intial velocity, u2 = 25 cm/s

Since both balls sticks after collision,

Final velocity,  

Substituting,

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