Posted by **fabian** on Tuesday, June 18, 2013 at 6:50pm.

A 13 g bullet is stopped in a block of wood

(

m

w

= 3

.

1 kg). The speed of the bullet-

plus-wood combination immediately after the

collision is 0

.

57 m

/

s.

What was the original speed of the bullet?

Answer in units of m

/

s

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