A 0.150-kg frame, when suspended from a coil spring, stretches the spring 0.050 m. A 0.200-kg lump of putty is dropped from rest onto the frame from a height of 30.0 cm. Find the maximum distance the frame moves downward from its initial position in meters. First I found the spring constant, k, which is given by F = -kx. F = -kx k = -F/x = -(0.150kg *9.8 m/s2)/(0.050m) = 29.4 N/m Next, I found the force that the lump of putty makes on the frame. The force is given by F = ma. The mass of the putty, 0.200kg, and the acceleration which is due to gravity, -9.8m/s2. F = ma = 0.200kg * -9.8m/s2 = 1.96 N Now the spring constant, k (29.4N/m), and the force of the putty, 1.96N, so I finally solve for the distance the frame moves. F = -kx x = -k/F = -(29.4N/m)/(1.96N) = -15m It is negative, because it moves in the -x direction. So, the frame moves 15m downwards is what I get but my program says it is wrong. Can someone please help me?