Asked by george

A 15.4g bullet traveling at 270 m/s is fired into a 0.488kg wooden block anchored to a 100 N/m spring. How far is the spring compressed?
x_{compressed} =

If the speed of the bullet is not known but it is observed that the spring is compressed 43.9 cm, what was the speed of the bullet?
v_{bullet} =
Answered by bobpursley
It is not reasonable to assume conservation of energy. There is not enough information to do this without the conservation of energy.
Answered by george
that is what i thought