A 1100 kg safe is 2.0 m above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 60 cm . What is the spring constant of the spring?

7) A 5.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.300 m by a large spring bumper at the end of its track. What is the force constant k of the spring (in N/m)? _____ N/m

A mass and a spring A 3.4 kg block slides 3.3 m across a frictionless, horizontal table at 2.2 m/s, moving left. Once the block hits the spring, it sticks, compressing the spring 70 cm before the block stops and reverses direction. The block then continues to bounce back and forth, still attached to the spring. The spring constant is 33.6 N/m. Ignore air resistance. 2.2 m/s 3.3 m 70 cm 1. Plot the position of the block as a function of time, with t = 0 when the block first hits the spring. Include the location at negative time values back to when the block was 3.3 m away from the spring. Clearly define your coordinate system. Plot two full oscillations of the spring. Use a graph. 2. What equation describes this position graph? Be sure to include units! Use a piecewise equation. .....

atio teamsn Q Search commans of 300Nm) and a g cup thac holdsa Lo0 g e Each upring has an epous mgthof 500 cm When the springs ae 6.51 A slingshot that launches a stone horizontally consists of two light, identical springs (with spring constants of 30.0 N/m) and a light cup that holds a 1.00 kg stone. Each spring has an equilibrium length of 50.0 cm. When the springs are in equilibrium, they line up vertically. Suppose that the cup containing the mass is pulled to x= 70.0 cm to the left of the vertical and then released. 0.5 m x30.7 ml F www 0.5 m Determine (a) the system's total mechanical energy: b) the speed of the stone at x = 0.