A 10-Kg Block Starts from Rest at a Vertical Height

Multiple Choice

A 10-kg block starts from rest at a vertical height of 1 m on a 30º frictionless inclined plane.If the block slides down the incline and then 20 m along a frictionless horizontal surface into a fixed spring with a force constant of 100 N/m,the spring is compressed approximately

A) 1.4 m
B) 2.0 m
C) 0.33 m
D) 0.98 m
E) 2.5 m