Question 87
Particles A A\,A and BBB, of masses m kgm\text{ kg}m kg and 3m kg respectively, are attached to the ends of a light inextensible string passing over a small smooth fixed pulley. The system is released from rest. The tension in the string is 44.1 N. Use g=9.8 m s−2g=9.8\text{ m s}^{-2}g=9.8 m s−2.
a.[3]
Show that the magnitude of the acceleration is 4.9 m s-2.
b.[3]
Determine mmm.