posted by cbrown .
An 6.82 kg block drops straight down from a height of 1.31 m, striking a platform spring having a force constant of 1.16 10^3 N/m. Find the maximum compression of the spring.
gravitational potential energy -->kinetic energy of block ---> potential energy of spring
m g h = (1/2) m v^2 = (1/2) k x^2