posted by Anna .
In an arcade game a 0.087 kg disk is shot
across a frictionless horizontal surface by com-
pressing it against a spring and releasing it.
If the spring has a spring constant of
163 N/m and is compressed from its equi-
librium position by 4 cm, find the speed with
which the disk slides across the surface.
Answer in units of m/s.
uggghhhh i need help on this one too