Questions 13-16 A massiess spring with spring constant k is attached at one end of a...

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Answer 1

Answer #1

The spring force is a non-impulsive force, i.e. it can't change its value in infinitesimal time. This fact allows us to use conservation of momentum instantaneously. Thus,

$m_bv_0=(M+m_b)v$

where v is the speed of the combined system just after collision.

$Tbo$

correct answer (c).

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Answer 2

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