Peter pulls a trolley of 18.0 kg which is initially at rest, horizontally on the floor. The trolley starts from rest to 15.0 m/s in 5.0 seconds. Write your answer using TWO decimal places! Do NOT include units. You must include a leading zero in your answer if appropriate (e.g., 0.18). (a) What is the acceleration(in ms-2) of the trolley? (2 marks) Answer (b) What is the net force(in newtons)? (2 marks) Answer (c) Determine the change in the trolley's kinetic energy(in joules). (2 marks