# Answer on Mechanics | Relativity Question for sakinah

Question #19918

A 24.0 g ball is fired horizontally with initial speed toward a 100 g ball that is hanging motionless from a 1.10 m -long string. The balls undergo a head-on, perfectly elastic collision, after which the 100 g ball swings out to a maximum angle = 52.0.

What was the initial velocity ?

What was the initial velocity ?

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