1. The problem statement, all variables and given/known data Find the rotational acceleration, final tangential velocity and centripetal acceleration of a 50.0 g rubber bung, starting from rest, swung in a horizontal circular path on a very light string of length 90.0 cm. The tension in the string is provided by a mass of 250.0 g. Find the angular momentum of the rubber bung. I have attached the diagram we were given. This is all the information available. 2. Relevant equations 3. The attempt at a solution More looking at a clarification of the question at this stage - as far as I can tell the rubber bung would not accelerate in a circle at all.