Question

uls. x a Lecture Slides × | D EXAM 2017. pc × | D Numerical An). D EXAM 2018p × D EXAM 2017.pd × | G when does am × | G X-rays are prc 63-dt-content-rid-10519513.2/courses Q ☆脱㊦ @) e Waves and Particles January 2018 PHYS002501 C2. (a) A large spring has one end attached to the floor and a platform attached to its upper end. On the platform is placed a suitcase of mass 25 kg. The mass of the platform itself is 30 kg. The spring-platform-suitcase system is then set into vertical oscillations with a natural period of 0.8 s. Determine (0) the stiffness (spring constant) of the spring (iü) the amplitude of the motion if the maximum speed of the suitcase is 0.5 ms-1 (b) If the motion of the suitcase is timed starting from its highest point, calculate how far it has travelled in 1.5 s. (c) If the amplitude is now gradually increased the suitcase will eventually leave the platform momentarily during each cycle. Say why this happens and calculate the amplitude at which this happens し.DOC Lect 16b REVI pptx ^ 贮Lect 16 Wave pptx ^ 贮Quiz 5.pptx fwdcalcpastpap..zip
Part c

Answer 1