Maths A-level. Urgent

Bodies of mass 2 kg and 3 kg are attached to either end of a light inextensible string passing
over a smooth fixed pulley. Initially the system is held at rest with the 2 kg body on the ground
and the 3 kg body suspended 4 m above the ground, as shown. The system is then released.
(a) Calculate
(i) The acceleration of the bodies
(ii) The tension in the string. (5)
The 3 kg body strikes the ground and does not rebound.
(b) Find the greatest height above the ground reached by the 2 kg body. (5)