Question: A 1.5-kg mass is projected up a rough circular track (radius = 0.80 m) as shown. The speed of the mass at point A

A 1.5-kg mass is projected up a rough circular track (radius = 0.80 m) as shown. The speed of the mass at point A is 8 m/s, and at point B, it is 5.2 m/s. What is the magnitude of change in mechanical energy between A and B caused by the force of friction? hint: find energy lost due to friction Enter your answer in Joules B 0.80 m A

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