2015 CAIE AS & A level October November Physics Paper 12 Q N 12 (9702/12/O/N/15) by Sajit C Shakya

2015 Cambridge International AS & A level October November Physics Paper 12 Q. NO. 12 (9702/12/O/N/15) by Sajit Chandra Shakya from Nepal Chapter - DEFORMATION OF SOLIDS A mass of 0.20 kg is suspended from the lower end of a light spring. A second mass of 0.10kg is suspended from the first mass by a thread. The arrangement is allowed to come into static equilibrium and then the thread is burned through. At this instant, what is the upward acceleration of the 0.20kg mass? (Assume g = 10ms–2.) A 5.0ms–2 B 6.7ms–2 C 10ms–2 D 15ms–2