A chain consisting of five links each of mass 0115 kg is

Question

Solve the all parts of given question:

Question: A chain consisting of five links, each of mass 0.115 kg, is lifted vertically with a constant acceleration of a = 2.5 m/s².

Part A: Find the magnitude of the force that link 3 exerts on link 2?

Part B: What is the magnitude of the force F that must be exerted on the top link to achieve this acceleration?

Please do a step by step solution since I'm kind of lost with this question.