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In the Soapbox Derby in (Figure 1), young participants Part A build non-motorized cars with very low-friction wheels. Cars race by rolling down a hill. Assume that the track begins with a 49-ft-long (1 m = 3.28 ft) section tilted 13 0 What is the maximum possible acceleration of a car moving down this stretch of track? below horizontal. Express your answer with the appropriate units. HA ? m a = 8.10 S Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining igure