A projectile of mass 20 g has an initial horizontal velocity of 100 m/s when it hits and stops in a wood block of mass 0.403 kg. The block is sitting on a horizontal frictionless surface and is attached to a massless spring, initially relaxed, with spring constant 148 N/m. What is the maximum compression of the spring?(adsbygoogle = window.adsbygoogle || []).push({});

since momentum is conserved, i used the equation

mv(initial) = mv (final), and found the final velocity of the block, as a result of the mass hitting it, is 4.963,

but i'm not sure where to go from here? ..or am i heading the right direction ?

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# Homework Help: Bullet,block and spring

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