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A 5.00 gm bullet moving with an
initial speed of Vi = 400 m/s is fired into and
passes through a stationary 1kg block
that is sitting on a frictionless, horizontal
surface. The block is connected to a spring
with k= 900 N/m. The block moves d = 5 cm
to the right after impact before coming to
rest by the spring
a) Find the speed of the block after the collision.
b) Find the speed at which the bullet emerges from the block.
c) Find the energy lost during the collision
d) Is the collision elastic or inelastic?​

Sagot :

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