A contestant in a winter games event pushes a 54.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (Assume @ = 190.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. 54.1 IX Did you draw a free-body diagram and identify the forces acting on the system? N (b) What is its acceleration (in m/s") once it starts to move, if that force is maintained? m/s2