(radius 0.91 m, diameter A 9.28 kg mass is projected up a rough circular track 2x0.91 m) as shown. The speed of the mass at point A is 13.03, and at point B, S it is 1.72 m. What is the work done by the force of friction during the process (please retain the sign of work in your answer)? Give your answer to 1 decimal place. COM B d 12 V (radius 0.91 m, diameter A 9.28 kg mass is projected up a rough circular track 2x0.91 m) as shown. The speed of the mass at point A is 13.03, and at point B, S it is 1.72 m. What is the work done by the force of friction during the process (please retain the sign of work in your answer)? Give your answer to 1 decimal place. COM B d 12 V