
Ch. 3 HW solutions.fm
... Put the origin at the top of the device, where it is supported, so the initial y is –0.27 m: y new = ( – 0.27 m ) + ( – 3.96 m/s ) ( 10 –3 s ) = – 0.27396 m The unstretched length is 0.20 m, so the final stretch is 0.07396 m. If you use the initial velocity instead of the new velocity, the result is ...
... Put the origin at the top of the device, where it is supported, so the initial y is –0.27 m: y new = ( – 0.27 m ) + ( – 3.96 m/s ) ( 10 –3 s ) = – 0.27396 m The unstretched length is 0.20 m, so the final stretch is 0.07396 m. If you use the initial velocity instead of the new velocity, the result is ...