The crate of mass m = 35 kg is attached to the springs with constants k1 = 1 kN/m and k2 =...

The crate of mass m = 35 kg is attached to the springs with constants k1 = 1 kN/m and k2 = 2 kN/m. Both springs are unstretched when δ = 0 and the box is centered between the two vertical walls.

If the crate is released from rest after being displaced a distance δ = 2 m and friction between the crate and the surface on which it slides is negligible, determine the speed of the crate when it returns to δ = 0.

Figure P4.46