The cart in the diagram below has a mass of 0.26 kg and is attached, by a string and a pulley, to a weight that has a mass of 0.50 kg. (Note: Don't forget to use proper sig figs etc for 1 full mark. Draw FBDs for 2 full marks - FBDs must be drawn separate from the diagram.) [10 marks]

a) Calculate the acceleration of the cart if there is a kinetic frictional force of 0.10 N acting on the cart. (Make sure you provide a full response with the manipulation of the equations. Show how you got your formula). (5 marks)

b) Calculate the magnitude of tension in the string. (2 marks)