posted by Ryan .
An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 38.6 N/m, the mass of the object 0.270 kg and the speed of the object is 1.20 m/s immediately before the collision. (a) Determine the spring's maximum compression if the track is frictionless. (b) If the track is not frictionless, will the spring's maximum compression be greater than, less than, or equal to the value obtained in part (a)?
a. compresses spring energy=initial KE
b. max compression will be less, of course.