In this case, the acceleration is zero m/s 2 (as seen in the graph showing the acceleration) and the tension in the string is just the weight of mass 2 (0.145 kg)*(9.8 N/kg) = 1.421 N. The masses ...

A demonstration of key points of the required practical to investigate the effect of varying force or mass on the acceleration of an object for GCSE physics and combined science.