can someone please please please help me find the spring force constant thank you thank you thank you thank you

Answer mechanical energy;

Gravity, from the center of mass of the box, extending downward normal force, from the floor under the box, extending upward, equal to gravity push force, acting at a point on the box, extending in the direction of motion friction, acting at any point on the box directly opposite the push, extending directly opposite to the motion

Can you give more detail  

Answerclock speed;