Two Blocks with a Spring


Two blocks, with masses m_{1}=4.6 kg and m_{2}=3.8 kg. are connected
by a light spring on a horizontal table. At a certain time, m_{2}
has an acceleration of a_{2}=2.5\frac{m}{s^{2}}.

a) What is the force on m_{2} at that time?

b) What is the acceleration on m_{1} at that time?