posted by Jason .
A 16 kg block slides down a 30 degree frictionless incline where it is stopped by a strong Hook's Law spring at the
bottom. The spring constant is k = 9.8 x10^4 N/m. If the block slides 9 m from the point where it was released (from
rest) to the point where it comes to rest against the spring, how far (in mm) has the spring been compressed?