Question A 735 kg roller coaster starts from rest at its highest point A. Assuming no friction, calculate the: a) PE at A,B,C,D b) KE at A,B,C,D c)Speed at points B, C, & D. Show all work and units in your calculations 40 m B Edit View Insert Format Tools Table 12pt Paragraph B I U D 35 m 20 m 10