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Title: A 4.20-g bullet embeds itself in a 20.0-kg block, which is attached to a horizon Post by: ppk on Mar 22, 2012 A 4.20-g bullet embeds itself in a 20.0-kg block, which is attached to a horizontal spring with a force constant of 950 N/m. The maximum compression of the spring is 2.10 cm. What is the speed of the bullet just before it hits the block?
A) 690 m/s B) 700 m/s C) 672 m/s D) 900 m/s E) 952 m/s Title: Re: A 4.20-g bullet embeds itself in a 20.0-kg block, which is attached to a horizon Post by: bio_man on Mar 23, 2012 A
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